28641025

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2683}}^1$

素因数の和:2761

約数の個数: 24

約数和(自身を含む): 41269184

約数和(自身を除く): 12628159

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 1525, 2135, 2683, 10675, 13415, 18781, 67075, 93905, 163663, 469525, 818315, 1145641, 4091575, 5728205, 28641025]

約数ペア:

[(1, 28641025), (5, 5728205), (7, 4091575), (25, 1145641), (35, 818315), (61, 469525), (175, 163663), (305, 93905), (427, 67075), (1525, 18781), (2135, 13415), (2683, 10675)]