64039625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{39409}}^1$

素因数の和:39437

約数の個数: 16

約数和(自身を含む): 86071440

約数和(自身を除く): 22031815

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 39409, 197045, 512317, 985225, 2561585, 4926125, 12807925, 64039625]

約数ペア:

[(1, 64039625), (5, 12807925), (13, 4926125), (25, 2561585), (65, 985225), (125, 512317), (325, 197045), (1625, 39409)]