1997920

素因数分解:

$2^5\times 5^1\times {\mathrm{12487}}^1$

素因数の和:12502

約数の個数: 24

約数和(自身を含む): 4720464

約数和(自身を除く): 2722544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 12487, 24974, 49948, 62435, 99896, 124870, 199792, 249740, 399584, 499480, 998960, 1997920]

約数ペア:

[(1, 1997920), (2, 998960), (4, 499480), (5, 399584), (8, 249740), (10, 199792), (16, 124870), (20, 99896), (32, 62435), (40, 49948), (80, 24974), (160, 12487)]