664004875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3539}}^1$

素因数の和:3652

約数の個数: 32

約数和(自身を含む): 883584000

約数和(自身を除く): 219579125

約数列:

[1, 5, 19, 25, 79, 95, 125, 395, 475, 1501, 1975, 2375, 3539, 7505, 9875, 17695, 37525, 67241, 88475, 187625, 279581, 336205, 442375, 1397905, 1681025, 5312039, 6989525, 8405125, 26560195, 34947625, 132800975, 664004875]

約数ペア:

[(1, 664004875), (5, 132800975), (19, 34947625), (25, 26560195), (79, 8405125), (95, 6989525), (125, 5312039), (395, 1681025), (475, 1397905), (1501, 442375), (1975, 336205), (2375, 279581), (3539, 187625), (7505, 88475), (9875, 67241), (17695, 37525)]