640875648

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7691}}^1$

素因数の和:7746

約数の個数: 128

約数和(自身を含む): 2008535040

約数和(自身を除く): 1367659392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 64, 84, 93, 96, 112, 124, 128, 168, 186, 192, 217, 224, 248, 336, 372, 384, 434, 448, 496, 651, 672, 744, 868, 896, 992, 1302, 1344, 1488, 1736, 1984, 2604, 2688, 2976, 3472, 3968, 5208, 5952, 6944, 7691, 10416, 11904, 13888, 15382, 20832, 23073, 27776, 30764, 41664, 46146, 53837, 61528, 83328, 92292, 107674, 123056, 161511, 184584, 215348, 238421, 246112, 323022, 369168, 430696, 476842, 492224, 646044, 715263, 738336, 861392, 953684, 984448, 1292088, 1430526, 1476672, 1668947, 1722784, 1907368, 2584176, 2861052, 2953344, 3337894, 3445568, 3814736, 5006841, 5168352, 5722104, 6675788, 6891136, 7629472, 10013682, 10336704, 11444208, 13351576, 15258944, 20027364, 20673408, 22888416, 26703152, 30517888, 40054728, 45776832, 53406304, 80109456, 91553664, 106812608, 160218912, 213625216, 320437824, 640875648]

約数ペア:

[(1, 640875648), (2, 320437824), (3, 213625216), (4, 160218912), (6, 106812608), (7, 91553664), (8, 80109456), (12, 53406304), (14, 45776832), (16, 40054728), (21, 30517888), (24, 26703152), (28, 22888416), (31, 20673408), (32, 20027364), (42, 15258944), (48, 13351576), (56, 11444208), (62, 10336704), (64, 10013682), (84, 7629472), (93, 6891136), (96, 6675788), (112, 5722104), (124, 5168352), (128, 5006841), (168, 3814736), (186, 3445568), (192, 3337894), (217, 2953344), (224, 2861052), (248, 2584176), (336, 1907368), (372, 1722784), (384, 1668947), (434, 1476672), (448, 1430526), (496, 1292088), (651, 984448), (672, 953684), (744, 861392), (868, 738336), (896, 715263), (992, 646044), (1302, 492224), (1344, 476842), (1488, 430696), (1736, 369168), (1984, 323022), (2604, 246112), (2688, 238421), (2976, 215348), (3472, 184584), (3968, 161511), (5208, 123056), (5952, 107674), (6944, 92292), (7691, 83328), (10416, 61528), (11904, 53837), (13888, 46146), (15382, 41664), (20832, 30764), (23073, 27776)]