2031280

素因数分解:

$2^4\times 5^1\times {\mathrm{25391}}^1$

素因数の和:25404

約数の個数: 20

約数和(自身を含む): 4722912

約数和(自身を除く): 2691632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25391, 50782, 101564, 126955, 203128, 253910, 406256, 507820, 1015640, 2031280]

約数ペア:

[(1, 2031280), (2, 1015640), (4, 507820), (5, 406256), (8, 253910), (10, 203128), (16, 126955), (20, 101564), (40, 50782), (80, 25391)]