18765820

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{4027}}^1$

素因数の和:4269

約数の個数: 24

約数和(自身を含む): 39587184

約数和(自身を除く): 20821364

約数列:

[1, 2, 4, 5, 10, 20, 233, 466, 932, 1165, 2330, 4027, 4660, 8054, 16108, 20135, 40270, 80540, 938291, 1876582, 3753164, 4691455, 9382910, 18765820]

約数ペア:

[(1, 18765820), (2, 9382910), (4, 4691455), (5, 3753164), (10, 1876582), (20, 938291), (233, 80540), (466, 40270), (932, 20135), (1165, 16108), (2330, 8054), (4027, 4660)]