78387660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 258978720

約数和(自身を除く): 180591060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 139, 156, 180, 195, 234, 241, 260, 278, 390, 417, 468, 482, 556, 585, 695, 723, 780, 834, 964, 1170, 1205, 1251, 1390, 1446, 1668, 1807, 2085, 2169, 2340, 2410, 2502, 2780, 2892, 3133, 3614, 3615, 4170, 4338, 4820, 5004, 5421, 6255, 6266, 7228, 7230, 8340, 8676, 9035, 9399, 10842, 10845, 12510, 12532, 14460, 15665, 16263, 18070, 18798, 21684, 21690, 25020, 27105, 28197, 31330, 32526, 33499, 36140, 37596, 43380, 46995, 54210, 56394, 62660, 65052, 66998, 81315, 93990, 100497, 108420, 112788, 133996, 140985, 162630, 167495, 187980, 200994, 281970, 301491, 325260, 334990, 401988, 435487, 502485, 563940, 602982, 669980, 870974, 1004970, 1205964, 1306461, 1507455, 1741948, 2009940, 2177435, 2612922, 3014910, 3919383, 4354870, 5225844, 6029820, 6532305, 7838766, 8709740, 13064610, 15677532, 19596915, 26129220, 39193830, 78387660]

約数ペア:

[(1, 78387660), (2, 39193830), (3, 26129220), (4, 19596915), (5, 15677532), (6, 13064610), (9, 8709740), (10, 7838766), (12, 6532305), (13, 6029820), (15, 5225844), (18, 4354870), (20, 3919383), (26, 3014910), (30, 2612922), (36, 2177435), (39, 2009940), (45, 1741948), (52, 1507455), (60, 1306461), (65, 1205964), (78, 1004970), (90, 870974), (117, 669980), (130, 602982), (139, 563940), (156, 502485), (180, 435487), (195, 401988), (234, 334990), (241, 325260), (260, 301491), (278, 281970), (390, 200994), (417, 187980), (468, 167495), (482, 162630), (556, 140985), (585, 133996), (695, 112788), (723, 108420), (780, 100497), (834, 93990), (964, 81315), (1170, 66998), (1205, 65052), (1251, 62660), (1390, 56394), (1446, 54210), (1668, 46995), (1807, 43380), (2085, 37596), (2169, 36140), (2340, 33499), (2410, 32526), (2502, 31330), (2780, 28197), (2892, 27105), (3133, 25020), (3614, 21690), (3615, 21684), (4170, 18798), (4338, 18070), (4820, 16263), (5004, 15665), (5421, 14460), (6255, 12532), (6266, 12510), (7228, 10845), (7230, 10842), (8340, 9399), (8676, 9035)]