18864740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30427}}^1$

素因数の和:30467

約数の個数: 24

約数和(自身を含む): 40895232

約数和(自身を除く): 22030492

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 30427, 60854, 121708, 152135, 304270, 608540, 943237, 1886474, 3772948, 4716185, 9432370, 18864740]

約数ペア:

[(1, 18864740), (2, 9432370), (4, 4716185), (5, 3772948), (10, 1886474), (20, 943237), (31, 608540), (62, 304270), (124, 152135), (155, 121708), (310, 60854), (620, 30427)]