15996560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4877}}^1$

素因数の和:4931

約数の個数: 40

約数和(自身を含む): 38106936

約数和(自身を除く): 22110376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4877, 9754, 19508, 24385, 39016, 48770, 78032, 97540, 195080, 199957, 390160, 399914, 799828, 999785, 1599656, 1999570, 3199312, 3999140, 7998280, 15996560]

約数ペア:

[(1, 15996560), (2, 7998280), (4, 3999140), (5, 3199312), (8, 1999570), (10, 1599656), (16, 999785), (20, 799828), (40, 399914), (41, 390160), (80, 199957), (82, 195080), (164, 97540), (205, 78032), (328, 48770), (410, 39016), (656, 24385), (820, 19508), (1640, 9754), (3280, 4877)]