12470020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1481}}^1$

素因数の和:1911

約数の個数: 24

約数和(自身を含む): 26266968

約数和(自身を除く): 13796948

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1481, 1684, 2105, 2962, 4210, 5924, 7405, 8420, 14810, 29620, 623501, 1247002, 2494004, 3117505, 6235010, 12470020]

約数ペア:

[(1, 12470020), (2, 6235010), (4, 3117505), (5, 2494004), (10, 1247002), (20, 623501), (421, 29620), (842, 14810), (1481, 8420), (1684, 7405), (2105, 5924), (2962, 4210)]