64892560

素因数分解:

$2^4\times 5^1\times {\mathrm{811157}}^1$

素因数の和:811170

約数の個数: 20

約数和(自身を含む): 150875388

約数和(自身を除く): 85982828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811157, 1622314, 3244628, 4055785, 6489256, 8111570, 12978512, 16223140, 32446280, 64892560]

約数ペア:

[(1, 64892560), (2, 32446280), (4, 16223140), (5, 12978512), (8, 8111570), (10, 6489256), (16, 4055785), (20, 3244628), (40, 1622314), (80, 811157)]