65326480

素因数分解:

$2^4\times 5^1\times {\mathrm{816581}}^1$

素因数の和:816594

約数の個数: 20

約数和(自身を含む): 151884252

約数和(自身を除く): 86557772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 816581, 1633162, 3266324, 4082905, 6532648, 8165810, 13065296, 16331620, 32663240, 65326480]

約数ペア:

[(1, 65326480), (2, 32663240), (4, 16331620), (5, 13065296), (8, 8165810), (10, 6532648), (16, 4082905), (20, 3266324), (40, 1633162), (80, 816581)]