20980360

素因数分解:

$2^3\times 5^1\times {\mathrm{524509}}^1$

素因数の和:524520

約数の個数: 16

約数和(自身を含む): 47205900

約数和(自身を除く): 26225540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 524509, 1049018, 2098036, 2622545, 4196072, 5245090, 10490180, 20980360]

約数ペア:

[(1, 20980360), (2, 10490180), (4, 5245090), (5, 4196072), (8, 2622545), (10, 2098036), (20, 1049018), (40, 524509)]