8027980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5081}}^1$

素因数の和:5169

約数の個数: 24

約数和(自身を含む): 17075520

約数和(自身を除く): 9047540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 5081, 10162, 20324, 25405, 50810, 101620, 401399, 802798, 1605596, 2006995, 4013990, 8027980]

約数ペア:

[(1, 8027980), (2, 4013990), (4, 2006995), (5, 1605596), (10, 802798), (20, 401399), (79, 101620), (158, 50810), (316, 25405), (395, 20324), (790, 10162), (1580, 5081)]