1330284220

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{157991}}^1$

素因数の和:158421

約数の個数: 24

約数和(自身を含む): 2800250208

約数和(自身を除く): 1469965988

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 157991, 315982, 631964, 789955, 1579910, 3159820, 66514211, 133028422, 266056844, 332571055, 665142110, 1330284220]

約数ペア:

[(1, 1330284220), (2, 665142110), (4, 332571055), (5, 266056844), (10, 133028422), (20, 66514211), (421, 3159820), (842, 1579910), (1684, 789955), (2105, 631964), (4210, 315982), (8420, 157991)]