2171020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1487}}^1$

素因数の和:1569

約数の個数: 24

約数和(自身を含む): 4624704

約数和(自身を除く): 2453684

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 1487, 2974, 5948, 7435, 14870, 29740, 108551, 217102, 434204, 542755, 1085510, 2171020]

約数ペア:

[(1, 2171020), (2, 1085510), (4, 542755), (5, 434204), (10, 217102), (20, 108551), (73, 29740), (146, 14870), (292, 7435), (365, 5948), (730, 2974), (1460, 1487)]