21970160

素因数分解:

$2^4\times 5^1\times {\mathrm{274627}}^1$

素因数の和:274640

約数の個数: 20

約数和(自身を含む): 51080808

約数和(自身を除く): 29110648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274627, 549254, 1098508, 1373135, 2197016, 2746270, 4394032, 5492540, 10985080, 21970160]

約数ペア:

[(1, 21970160), (2, 10985080), (4, 5492540), (5, 4394032), (8, 2746270), (10, 2197016), (16, 1373135), (20, 1098508), (40, 549254), (80, 274627)]