81384868

素因数分解:

$2^2\times {\mathrm{431}}^1\times {\mathrm{47207}}^1$

素因数の和:47642

約数の個数: 12

約数和(自身を含む): 142756992

約数和(自身を除く): 61372124

約数列:

[1, 2, 4, 431, 862, 1724, 47207, 94414, 188828, 20346217, 40692434, 81384868]

約数ペア:

[(1, 81384868), (2, 40692434), (4, 20346217), (431, 188828), (862, 94414), (1724, 47207)]