64486769680

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1\times {\mathrm{26557}}^1$

素因数の和:26936

約数の個数: 80

約数和(自身を含む): 151750287360

約数和(自身を除く): 87263517680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 239, 254, 478, 508, 635, 956, 1016, 1195, 1270, 1912, 2032, 2390, 2540, 3824, 4780, 5080, 9560, 10160, 19120, 26557, 30353, 53114, 60706, 106228, 121412, 132785, 151765, 212456, 242824, 265570, 303530, 424912, 485648, 531140, 607060, 1062280, 1214120, 2124560, 2428240, 3372739, 6347123, 6745478, 12694246, 13490956, 16863695, 25388492, 26981912, 31735615, 33727390, 50776984, 53963824, 63471230, 67454780, 101553968, 126942460, 134909560, 253884920, 269819120, 507769840, 806084621, 1612169242, 3224338484, 4030423105, 6448676968, 8060846210, 12897353936, 16121692420, 32243384840, 64486769680]

約数ペア:

[(1, 64486769680), (2, 32243384840), (4, 16121692420), (5, 12897353936), (8, 8060846210), (10, 6448676968), (16, 4030423105), (20, 3224338484), (40, 1612169242), (80, 806084621), (127, 507769840), (239, 269819120), (254, 253884920), (478, 134909560), (508, 126942460), (635, 101553968), (956, 67454780), (1016, 63471230), (1195, 53963824), (1270, 50776984), (1912, 33727390), (2032, 31735615), (2390, 26981912), (2540, 25388492), (3824, 16863695), (4780, 13490956), (5080, 12694246), (9560, 6745478), (10160, 6347123), (19120, 3372739), (26557, 2428240), (30353, 2124560), (53114, 1214120), (60706, 1062280), (106228, 607060), (121412, 531140), (132785, 485648), (151765, 424912), (212456, 303530), (242824, 265570)]