31941040

素因数分解:

$2^4\times 5^1\times {\mathrm{399263}}^1$

素因数の和:399276

約数の個数: 20

約数和(自身を含む): 74263104

約数和(自身を除く): 42322064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399263, 798526, 1597052, 1996315, 3194104, 3992630, 6388208, 7985260, 15970520, 31941040]

約数ペア:

[(1, 31941040), (2, 15970520), (4, 7985260), (5, 6388208), (8, 3992630), (10, 3194104), (16, 1996315), (20, 1597052), (40, 798526), (80, 399263)]