68389420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{310861}}^1$

素因数の和:310881

約数の個数: 24

約数和(自身を含む): 156674448

約数和(自身を除く): 88285028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 310861, 621722, 1243444, 1554305, 3108610, 3419471, 6217220, 6838942, 13677884, 17097355, 34194710, 68389420]

約数ペア:

[(1, 68389420), (2, 34194710), (4, 17097355), (5, 13677884), (10, 6838942), (11, 6217220), (20, 3419471), (22, 3108610), (44, 1554305), (55, 1243444), (110, 621722), (220, 310861)]