64520804560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19670977}}^1$

素因数の和:19671031

約数の個数: 40

約数和(自身を含む): 153669680136

約数和(自身を除く): 89148875576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 19670977, 39341954, 78683908, 98354885, 157367816, 196709770, 314735632, 393419540, 786839080, 806510057, 1573678160, 1613020114, 3226040228, 4032550285, 6452080456, 8065100570, 12904160912, 16130201140, 32260402280, 64520804560]

約数ペア:

[(1, 64520804560), (2, 32260402280), (4, 16130201140), (5, 12904160912), (8, 8065100570), (10, 6452080456), (16, 4032550285), (20, 3226040228), (40, 1613020114), (41, 1573678160), (80, 806510057), (82, 786839080), (164, 393419540), (205, 314735632), (328, 196709770), (410, 157367816), (656, 98354885), (820, 78683908), (1640, 39341954), (3280, 19670977)]