18270620

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3251}}^1$

素因数の和:3541

約数の個数: 24

約数和(自身を含む): 38516688

約数和(自身を除く): 20246068

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 3251, 5620, 6502, 13004, 16255, 32510, 65020, 913531, 1827062, 3654124, 4567655, 9135310, 18270620]

約数ペア:

[(1, 18270620), (2, 9135310), (4, 4567655), (5, 3654124), (10, 1827062), (20, 913531), (281, 65020), (562, 32510), (1124, 16255), (1405, 13004), (2810, 6502), (3251, 5620)]