103990160

素因数分解:

$2^4\times 5^1\times {\mathrm{1299877}}^1$

素因数の和:1299890

約数の個数: 20

約数和(自身を含む): 241777308

約数和(自身を除く): 137787148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1299877, 2599754, 5199508, 6499385, 10399016, 12998770, 20798032, 25997540, 51995080, 103990160]

約数ペア:

[(1, 103990160), (2, 51995080), (4, 25997540), (5, 20798032), (8, 12998770), (10, 10399016), (16, 6499385), (20, 5199508), (40, 2599754), (80, 1299877)]