64758380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{701}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 141523200

約数和(自身を除く): 76764820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 701, 745, 1402, 1490, 2804, 2980, 3505, 4619, 7010, 9238, 14020, 18476, 21731, 23095, 43462, 46190, 86924, 92380, 104449, 108655, 208898, 217310, 417796, 434620, 522245, 1044490, 2088980, 3237919, 6475838, 12951676, 16189595, 32379190, 64758380]

約数ペア:

[(1, 64758380), (2, 32379190), (4, 16189595), (5, 12951676), (10, 6475838), (20, 3237919), (31, 2088980), (62, 1044490), (124, 522245), (149, 434620), (155, 417796), (298, 217310), (310, 208898), (596, 108655), (620, 104449), (701, 92380), (745, 86924), (1402, 46190), (1490, 43462), (2804, 23095), (2980, 21731), (3505, 18476), (4619, 14020), (7010, 9238)]