20408530

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{13697}}^1$

素因数の和:13853

約数の個数: 16

約数和(自身を含む): 36984600

約数和(自身を除く): 16576070

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 13697, 27394, 68485, 136970, 2040853, 4081706, 10204265, 20408530]

約数ペア:

[(1, 20408530), (2, 10204265), (5, 4081706), (10, 2040853), (149, 136970), (298, 68485), (745, 27394), (1490, 13697)]