257018580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:136

約数の個数: 432

約数和(自身を含む): 1035949824

約数和(自身を除く): 778931244

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 26, 28, 30, 34, 35, 36, 39, 42, 45, 51, 52, 60, 63, 65, 68, 70, 71, 78, 84, 85, 90, 91, 102, 105, 117, 119, 126, 130, 140, 142, 153, 156, 169, 170, 180, 182, 195, 204, 210, 213, 221, 234, 238, 252, 255, 260, 273, 284, 306, 315, 338, 340, 355, 357, 364, 390, 420, 426, 442, 455, 468, 476, 497, 507, 510, 546, 585, 595, 612, 630, 639, 663, 676, 710, 714, 765, 780, 819, 845, 852, 884, 910, 923, 994, 1014, 1020, 1065, 1071, 1092, 1105, 1170, 1183, 1190, 1207, 1260, 1278, 1326, 1365, 1420, 1428, 1491, 1521, 1530, 1547, 1638, 1690, 1785, 1820, 1846, 1988, 1989, 2028, 2130, 2142, 2210, 2340, 2366, 2380, 2414, 2485, 2535, 2556, 2652, 2730, 2769, 2873, 2982, 3042, 3060, 3094, 3195, 3276, 3315, 3380, 3549, 3570, 3621, 3692, 3978, 4095, 4260, 4284, 4420, 4473, 4615, 4641, 4732, 4828, 4970, 5070, 5355, 5460, 5538, 5746, 5915, 5964, 6035, 6084, 6188, 6390, 6461, 6630, 7098, 7140, 7242, 7455, 7605, 7735, 7956, 8190, 8307, 8449, 8619, 8946, 9230, 9282, 9940, 9945, 10140, 10647, 10710, 10863, 11076, 11492, 11830, 11999, 12070, 12780, 12922, 13260, 13845, 13923, 14196, 14365, 14484, 14910, 15210, 15470, 15691, 16380, 16614, 16898, 17238, 17745, 17892, 18105, 18460, 18564, 19383, 19890, 20111, 21294, 21420, 21726, 22365, 23205, 23660, 23998, 24140, 25347, 25844, 25857, 27690, 27846, 28730, 29820, 30420, 30940, 31382, 32305, 33228, 33796, 34476, 35490, 35997, 36210, 38766, 39780, 40222, 41535, 42245, 42588, 43095, 43452, 44730, 46410, 47073, 47996, 50694, 51714, 53235, 54315, 55380, 55692, 57460, 58149, 59995, 60333, 62764, 64610, 69615, 70980, 71994, 72420, 76041, 77532, 78455, 80444, 83070, 83993, 84490, 86190, 89460, 92820, 94146, 96915, 100555, 101388, 103428, 106470, 107991, 108630, 109837, 116298, 119990, 120666, 126735, 129220, 129285, 139230, 141219, 143988, 152082, 156910, 166140, 167986, 168980, 172380, 179985, 180999, 188292, 193830, 201110, 203983, 212940, 215982, 217260, 219674, 232596, 235365, 239980, 241332, 251979, 253470, 258570, 278460, 282438, 290745, 301665, 304164, 313820, 329511, 335972, 359970, 361998, 380205, 387660, 402220, 407966, 419965, 431964, 439348, 470730, 503958, 506940, 517140, 539955, 549185, 564876, 581490, 603330, 611949, 659022, 706095, 719940, 723996, 755937, 760410, 815932, 839930, 904995, 941460, 988533, 1007916, 1019915, 1079910, 1098370, 1162980, 1206660, 1223898, 1259895, 1318044, 1412190, 1427881, 1511874, 1520820, 1647555, 1679860, 1809990, 1835847, 1977066, 2039830, 2159820, 2196740, 2447796, 2519790, 2824380, 2855762, 3023748, 3059745, 3295110, 3619980, 3671694, 3779685, 3954132, 4079660, 4283643, 4942665, 5039580, 5711524, 6119490, 6590220, 7139405, 7343388, 7559370, 8567286, 9179235, 9885330, 12238980, 12850929, 14278810, 15118740, 17134572, 18358470, 19770660, 21418215, 25701858, 28557620, 36716940, 42836430, 51403716, 64254645, 85672860, 128509290, 257018580]

約数ペア:

[(1, 257018580), (2, 128509290), (3, 85672860), (4, 64254645), (5, 51403716), (6, 42836430), (7, 36716940), (9, 28557620), (10, 25701858), (12, 21418215), (13, 19770660), (14, 18358470), (15, 17134572), (17, 15118740), (18, 14278810), (20, 12850929), (21, 12238980), (26, 9885330), (28, 9179235), (30, 8567286), (34, 7559370), (35, 7343388), (36, 7139405), (39, 6590220), (42, 6119490), (45, 5711524), (51, 5039580), (52, 4942665), (60, 4283643), (63, 4079660), (65, 3954132), (68, 3779685), (70, 3671694), (71, 3619980), (78, 3295110), (84, 3059745), (85, 3023748), (90, 2855762), (91, 2824380), (102, 2519790), (105, 2447796), (117, 2196740), (119, 2159820), (126, 2039830), (130, 1977066), (140, 1835847), (142, 1809990), (153, 1679860), (156, 1647555), (169, 1520820), (170, 1511874), (180, 1427881), (182, 1412190), (195, 1318044), (204, 1259895), (210, 1223898), (213, 1206660), (221, 1162980), (234, 1098370), (238, 1079910), (252, 1019915), (255, 1007916), (260, 988533), (273, 941460), (284, 904995), (306, 839930), (315, 815932), (338, 760410), (340, 755937), (355, 723996), (357, 719940), (364, 706095), (390, 659022), (420, 611949), (426, 603330), (442, 581490), (455, 564876), (468, 549185), (476, 539955), (497, 517140), (507, 506940), (510, 503958), (546, 470730), (585, 439348), (595, 431964), (612, 419965), (630, 407966), (639, 402220), (663, 387660), (676, 380205), (710, 361998), (714, 359970), (765, 335972), (780, 329511), (819, 313820), (845, 304164), (852, 301665), (884, 290745), (910, 282438), (923, 278460), (994, 258570), (1014, 253470), (1020, 251979), (1065, 241332), (1071, 239980), (1092, 235365), (1105, 232596), (1170, 219674), (1183, 217260), (1190, 215982), (1207, 212940), (1260, 203983), (1278, 201110), (1326, 193830), (1365, 188292), (1420, 180999), (1428, 179985), (1491, 172380), (1521, 168980), (1530, 167986), (1547, 166140), (1638, 156910), (1690, 152082), (1785, 143988), (1820, 141219), (1846, 139230), (1988, 129285), (1989, 129220), (2028, 126735), (2130, 120666), (2142, 119990), (2210, 116298), (2340, 109837), (2366, 108630), (2380, 107991), (2414, 106470), (2485, 103428), (2535, 101388), (2556, 100555), (2652, 96915), (2730, 94146), (2769, 92820), (2873, 89460), (2982, 86190), (3042, 84490), (3060, 83993), (3094, 83070), (3195, 80444), (3276, 78455), (3315, 77532), (3380, 76041), (3549, 72420), (3570, 71994), (3621, 70980), (3692, 69615), (3978, 64610), (4095, 62764), (4260, 60333), (4284, 59995), (4420, 58149), (4473, 57460), (4615, 55692), (4641, 55380), (4732, 54315), (4828, 53235), (4970, 51714), (5070, 50694), (5355, 47996), (5460, 47073), (5538, 46410), (5746, 44730), (5915, 43452), (5964, 43095), (6035, 42588), (6084, 42245), (6188, 41535), (6390, 40222), (6461, 39780), (6630, 38766), (7098, 36210), (7140, 35997), (7242, 35490), (7455, 34476), (7605, 33796), (7735, 33228), (7956, 32305), (8190, 31382), (8307, 30940), (8449, 30420), (8619, 29820), (8946, 28730), (9230, 27846), (9282, 27690), (9940, 25857), (9945, 25844), (10140, 25347), (10647, 24140), (10710, 23998), (10863, 23660), (11076, 23205), (11492, 22365), (11830, 21726), (11999, 21420), (12070, 21294), (12780, 20111), (12922, 19890), (13260, 19383), (13845, 18564), (13923, 18460), (14196, 18105), (14365, 17892), (14484, 17745), (14910, 17238), (15210, 16898), (15470, 16614), (15691, 16380)]