18457420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8167}}^1$

素因数の和:8289

約数の個数: 24

約数和(自身を含む): 39108384

約数和(自身を除く): 20650964

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8167, 16334, 32668, 40835, 81670, 163340, 922871, 1845742, 3691484, 4614355, 9228710, 18457420]

約数ペア:

[(1, 18457420), (2, 9228710), (4, 4614355), (5, 3691484), (10, 1845742), (20, 922871), (113, 163340), (226, 81670), (452, 40835), (565, 32668), (1130, 16334), (2260, 8167)]