257509560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:123

約数の個数: 384

約数和(自身を含む): 1029542400

約数和(自身を除く): 772032840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 29, 30, 31, 33, 35, 40, 42, 44, 55, 56, 58, 60, 62, 66, 70, 77, 84, 87, 88, 93, 105, 110, 116, 120, 124, 132, 140, 145, 154, 155, 165, 168, 174, 186, 203, 210, 217, 220, 231, 232, 248, 264, 280, 290, 308, 310, 319, 330, 341, 348, 372, 385, 406, 420, 434, 435, 440, 462, 465, 580, 609, 616, 620, 638, 651, 660, 682, 696, 744, 770, 812, 840, 868, 870, 899, 924, 930, 957, 961, 1015, 1023, 1085, 1155, 1160, 1218, 1240, 1276, 1302, 1320, 1364, 1540, 1595, 1624, 1705, 1736, 1740, 1798, 1848, 1860, 1914, 1922, 2030, 2046, 2170, 2233, 2310, 2387, 2436, 2552, 2604, 2697, 2728, 2883, 3045, 3080, 3190, 3255, 3410, 3480, 3596, 3720, 3828, 3844, 4060, 4092, 4340, 4466, 4495, 4620, 4774, 4785, 4805, 4872, 5115, 5208, 5394, 5766, 6090, 6293, 6380, 6510, 6699, 6727, 6820, 7161, 7192, 7656, 7688, 8120, 8184, 8680, 8932, 8990, 9240, 9548, 9570, 9610, 9889, 10230, 10571, 10788, 11165, 11532, 11935, 12180, 12586, 12760, 13020, 13398, 13454, 13485, 13640, 14322, 14415, 17864, 17980, 18879, 19096, 19140, 19220, 19778, 20181, 20460, 21142, 21576, 22330, 23064, 23870, 24360, 25172, 26040, 26796, 26908, 26970, 27869, 28644, 28830, 29667, 31465, 31713, 33495, 33635, 35805, 35960, 37758, 38280, 38440, 39556, 40362, 40920, 42284, 44660, 47740, 49445, 50344, 52855, 53592, 53816, 53940, 55738, 57288, 57660, 59334, 62930, 63426, 66990, 67270, 69223, 71610, 73997, 75516, 79112, 80724, 83607, 84568, 89320, 94395, 95480, 98890, 100905, 105710, 107880, 111476, 115320, 118668, 125860, 126852, 133980, 134540, 138446, 139345, 143220, 147994, 148335, 151032, 158565, 161448, 167214, 188790, 195083, 197780, 201810, 207669, 211420, 221991, 222952, 237336, 251720, 253704, 267960, 269080, 276892, 278690, 286440, 295988, 296670, 306559, 317130, 334428, 346115, 369985, 377580, 390166, 395560, 403620, 415338, 418035, 422840, 443982, 553784, 557380, 585249, 591976, 593340, 613118, 634260, 668856, 692230, 739970, 755160, 780332, 807240, 830676, 836070, 887964, 919677, 975415, 1038345, 1109955, 1114760, 1170498, 1186680, 1226236, 1268520, 1384460, 1479940, 1532795, 1560664, 1661352, 1672140, 1775928, 1839354, 1950830, 2076690, 2145913, 2219910, 2340996, 2452472, 2768920, 2926245, 2959880, 3065590, 3344280, 3678708, 3901660, 4153380, 4291826, 4439820, 4598385, 4681992, 5852490, 6131180, 6437739, 7357416, 7803320, 8306760, 8583652, 8879640, 9196770, 10729565, 11704980, 12262360, 12875478, 17167304, 18393540, 21459130, 23409960, 25750956, 32188695, 36787080, 42918260, 51501912, 64377390, 85836520, 128754780, 257509560]

約数ペア:

[(1, 257509560), (2, 128754780), (3, 85836520), (4, 64377390), (5, 51501912), (6, 42918260), (7, 36787080), (8, 32188695), (10, 25750956), (11, 23409960), (12, 21459130), (14, 18393540), (15, 17167304), (20, 12875478), (21, 12262360), (22, 11704980), (24, 10729565), (28, 9196770), (29, 8879640), (30, 8583652), (31, 8306760), (33, 7803320), (35, 7357416), (40, 6437739), (42, 6131180), (44, 5852490), (55, 4681992), (56, 4598385), (58, 4439820), (60, 4291826), (62, 4153380), (66, 3901660), (70, 3678708), (77, 3344280), (84, 3065590), (87, 2959880), (88, 2926245), (93, 2768920), (105, 2452472), (110, 2340996), (116, 2219910), (120, 2145913), (124, 2076690), (132, 1950830), (140, 1839354), (145, 1775928), (154, 1672140), (155, 1661352), (165, 1560664), (168, 1532795), (174, 1479940), (186, 1384460), (203, 1268520), (210, 1226236), (217, 1186680), (220, 1170498), (231, 1114760), (232, 1109955), (248, 1038345), (264, 975415), (280, 919677), (290, 887964), (308, 836070), (310, 830676), (319, 807240), (330, 780332), (341, 755160), (348, 739970), (372, 692230), (385, 668856), (406, 634260), (420, 613118), (434, 593340), (435, 591976), (440, 585249), (462, 557380), (465, 553784), (580, 443982), (609, 422840), (616, 418035), (620, 415338), (638, 403620), (651, 395560), (660, 390166), (682, 377580), (696, 369985), (744, 346115), (770, 334428), (812, 317130), (840, 306559), (868, 296670), (870, 295988), (899, 286440), (924, 278690), (930, 276892), (957, 269080), (961, 267960), (1015, 253704), (1023, 251720), (1085, 237336), (1155, 222952), (1160, 221991), (1218, 211420), (1240, 207669), (1276, 201810), (1302, 197780), (1320, 195083), (1364, 188790), (1540, 167214), (1595, 161448), (1624, 158565), (1705, 151032), (1736, 148335), (1740, 147994), (1798, 143220), (1848, 139345), (1860, 138446), (1914, 134540), (1922, 133980), (2030, 126852), (2046, 125860), (2170, 118668), (2233, 115320), (2310, 111476), (2387, 107880), (2436, 105710), (2552, 100905), (2604, 98890), (2697, 95480), (2728, 94395), (2883, 89320), (3045, 84568), (3080, 83607), (3190, 80724), (3255, 79112), (3410, 75516), (3480, 73997), (3596, 71610), (3720, 69223), (3828, 67270), (3844, 66990), (4060, 63426), (4092, 62930), (4340, 59334), (4466, 57660), (4495, 57288), (4620, 55738), (4774, 53940), (4785, 53816), (4805, 53592), (4872, 52855), (5115, 50344), (5208, 49445), (5394, 47740), (5766, 44660), (6090, 42284), (6293, 40920), (6380, 40362), (6510, 39556), (6699, 38440), (6727, 38280), (6820, 37758), (7161, 35960), (7192, 35805), (7656, 33635), (7688, 33495), (8120, 31713), (8184, 31465), (8680, 29667), (8932, 28830), (8990, 28644), (9240, 27869), (9548, 26970), (9570, 26908), (9610, 26796), (9889, 26040), (10230, 25172), (10571, 24360), (10788, 23870), (11165, 23064), (11532, 22330), (11935, 21576), (12180, 21142), (12586, 20460), (12760, 20181), (13020, 19778), (13398, 19220), (13454, 19140), (13485, 19096), (13640, 18879), (14322, 17980), (14415, 17864)]