8031280

素因数分解:

$2^4\times 5^1\times {\mathrm{100391}}^1$

素因数の和:100404

約数の個数: 20

約数和(自身を含む): 18672912

約数和(自身を除く): 10641632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 100391, 200782, 401564, 501955, 803128, 1003910, 1606256, 2007820, 4015640, 8031280]

約数ペア:

[(1, 8031280), (2, 4015640), (4, 2007820), (5, 1606256), (8, 1003910), (10, 803128), (16, 501955), (20, 401564), (40, 200782), (80, 100391)]