64945375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{317}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 89294400

約数和(自身を除く): 24349025

約数列:

[1, 5, 11, 25, 55, 125, 149, 275, 317, 745, 1375, 1585, 1639, 3487, 3725, 7925, 8195, 17435, 18625, 39625, 40975, 47233, 87175, 204875, 236165, 435875, 519563, 1180825, 2597815, 5904125, 12989075, 64945375]

約数ペア:

[(1, 64945375), (5, 12989075), (11, 5904125), (25, 2597815), (55, 1180825), (125, 519563), (149, 435875), (275, 236165), (317, 204875), (745, 87175), (1375, 47233), (1585, 40975), (1639, 39625), (3487, 18625), (3725, 17435), (7925, 8195)]