61511420

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{3491}}^1$

素因数の和:4381

約数の個数: 24

約数和(自身を含む): 129357648

約数和(自身を除く): 67846228

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3491, 3524, 4405, 6982, 8810, 13964, 17455, 17620, 34910, 69820, 3075571, 6151142, 12302284, 15377855, 30755710, 61511420]

約数ペア:

[(1, 61511420), (2, 30755710), (4, 15377855), (5, 12302284), (10, 6151142), (20, 3075571), (881, 69820), (1762, 34910), (3491, 17620), (3524, 17455), (4405, 13964), (6982, 8810)]