31339120

素因数分解:

$2^4\times 5^1\times {\mathrm{391739}}^1$

素因数の和:391752

約数の個数: 20

約数和(自身を含む): 72863640

約数和(自身を除く): 41524520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 391739, 783478, 1566956, 1958695, 3133912, 3917390, 6267824, 7834780, 15669560, 31339120]

約数ペア:

[(1, 31339120), (2, 15669560), (4, 7834780), (5, 6267824), (8, 3917390), (10, 3133912), (16, 1958695), (20, 1566956), (40, 783478), (80, 391739)]