331818188540

素因数分解:

$2^2\times 5^1\times {\mathrm{16590909427}}^1$

素因数の和:16590909436

約数の個数: 12

約数和(自身を含む): 696818195976

約数和(自身を除く): 365000007436

約数列:

[1, 2, 4, 5, 10, 20, 16590909427, 33181818854, 66363637708, 82954547135, 165909094270, 331818188540]

約数ペア:

[(1, 331818188540), (2, 165909094270), (4, 82954547135), (5, 66363637708), (10, 33181818854), (20, 16590909427)]