64136875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:541

約数の個数: 40

約数和(自身を含む): 92220480

約数和(自身を除く): 28083605

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 209, 275, 475, 491, 625, 1045, 1375, 2375, 2455, 5225, 5401, 6875, 9329, 11875, 12275, 26125, 27005, 46645, 61375, 102619, 130625, 135025, 233225, 306875, 513095, 675125, 1166125, 2565475, 3375625, 5830625, 12827375, 64136875]

約数ペア:

[(1, 64136875), (5, 12827375), (11, 5830625), (19, 3375625), (25, 2565475), (55, 1166125), (95, 675125), (125, 513095), (209, 306875), (275, 233225), (475, 135025), (491, 130625), (625, 102619), (1045, 61375), (1375, 46645), (2375, 27005), (2455, 26125), (5225, 12275), (5401, 11875), (6875, 9329)]