398126820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 288

約数和(自身を含む): 1416683520

約数和(自身を除く): 1018556700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 71, 78, 79, 84, 91, 105, 130, 140, 142, 156, 158, 169, 182, 195, 210, 213, 237, 260, 273, 284, 316, 338, 355, 364, 390, 395, 420, 426, 455, 474, 497, 507, 546, 553, 676, 710, 780, 790, 845, 852, 910, 923, 948, 994, 1014, 1027, 1065, 1092, 1106, 1183, 1185, 1365, 1420, 1491, 1580, 1659, 1690, 1820, 1846, 1988, 2028, 2054, 2130, 2212, 2366, 2370, 2485, 2535, 2730, 2765, 2769, 2982, 3081, 3318, 3380, 3549, 3692, 4108, 4260, 4615, 4732, 4740, 4970, 5070, 5135, 5460, 5530, 5538, 5609, 5915, 5964, 6162, 6461, 6636, 7098, 7189, 7455, 8295, 9230, 9940, 10140, 10270, 11060, 11076, 11218, 11830, 11999, 12324, 12922, 13351, 13845, 14196, 14378, 14910, 15405, 16590, 16827, 17745, 18460, 19383, 20540, 21567, 22436, 23660, 23998, 25844, 26702, 27690, 28045, 28756, 29820, 30810, 32305, 33180, 33654, 35490, 35945, 35997, 38766, 39263, 40053, 43134, 47996, 53404, 55380, 56090, 59995, 61620, 64610, 66755, 67308, 70980, 71890, 71994, 72917, 77532, 78526, 80106, 83993, 84135, 86268, 93457, 96915, 107835, 112180, 117789, 119990, 129220, 133510, 143780, 143988, 145834, 157052, 160212, 167986, 168270, 179985, 186914, 193830, 196315, 200265, 215670, 218751, 235578, 239980, 251979, 267020, 280371, 291668, 335972, 336540, 359970, 364585, 373828, 387660, 392630, 400530, 419965, 431340, 437502, 467285, 471156, 503958, 510419, 560742, 588945, 719940, 729170, 785260, 801060, 839930, 875004, 934570, 947921, 1007916, 1020838, 1093755, 1121484, 1177890, 1259895, 1401855, 1458340, 1531257, 1679860, 1869140, 1895842, 2041676, 2187510, 2355780, 2519790, 2552095, 2803710, 2843763, 3062514, 3791684, 4375020, 4739605, 5039580, 5104190, 5607420, 5687526, 6125028, 6635447, 7656285, 9479210, 10208380, 11375052, 13270894, 14218815, 15312570, 18958420, 19906341, 26541788, 28437630, 30625140, 33177235, 39812682, 56875260, 66354470, 79625364, 99531705, 132708940, 199063410, 398126820]

約数ペア:

[(1, 398126820), (2, 199063410), (3, 132708940), (4, 99531705), (5, 79625364), (6, 66354470), (7, 56875260), (10, 39812682), (12, 33177235), (13, 30625140), (14, 28437630), (15, 26541788), (20, 19906341), (21, 18958420), (26, 15312570), (28, 14218815), (30, 13270894), (35, 11375052), (39, 10208380), (42, 9479210), (52, 7656285), (60, 6635447), (65, 6125028), (70, 5687526), (71, 5607420), (78, 5104190), (79, 5039580), (84, 4739605), (91, 4375020), (105, 3791684), (130, 3062514), (140, 2843763), (142, 2803710), (156, 2552095), (158, 2519790), (169, 2355780), (182, 2187510), (195, 2041676), (210, 1895842), (213, 1869140), (237, 1679860), (260, 1531257), (273, 1458340), (284, 1401855), (316, 1259895), (338, 1177890), (355, 1121484), (364, 1093755), (390, 1020838), (395, 1007916), (420, 947921), (426, 934570), (455, 875004), (474, 839930), (497, 801060), (507, 785260), (546, 729170), (553, 719940), (676, 588945), (710, 560742), (780, 510419), (790, 503958), (845, 471156), (852, 467285), (910, 437502), (923, 431340), (948, 419965), (994, 400530), (1014, 392630), (1027, 387660), (1065, 373828), (1092, 364585), (1106, 359970), (1183, 336540), (1185, 335972), (1365, 291668), (1420, 280371), (1491, 267020), (1580, 251979), (1659, 239980), (1690, 235578), (1820, 218751), (1846, 215670), (1988, 200265), (2028, 196315), (2054, 193830), (2130, 186914), (2212, 179985), (2366, 168270), (2370, 167986), (2485, 160212), (2535, 157052), (2730, 145834), (2765, 143988), (2769, 143780), (2982, 133510), (3081, 129220), (3318, 119990), (3380, 117789), (3549, 112180), (3692, 107835), (4108, 96915), (4260, 93457), (4615, 86268), (4732, 84135), (4740, 83993), (4970, 80106), (5070, 78526), (5135, 77532), (5460, 72917), (5530, 71994), (5538, 71890), (5609, 70980), (5915, 67308), (5964, 66755), (6162, 64610), (6461, 61620), (6636, 59995), (7098, 56090), (7189, 55380), (7455, 53404), (8295, 47996), (9230, 43134), (9940, 40053), (10140, 39263), (10270, 38766), (11060, 35997), (11076, 35945), (11218, 35490), (11830, 33654), (11999, 33180), (12324, 32305), (12922, 30810), (13351, 29820), (13845, 28756), (14196, 28045), (14378, 27690), (14910, 26702), (15405, 25844), (16590, 23998), (16827, 23660), (17745, 22436), (18460, 21567), (19383, 20540)]