408047240

素因数分解:

$2^3\times 5^1\times {\mathrm{10201181}}^1$

素因数の和:10201192

約数の個数: 16

約数和(自身を含む): 918106380

約数和(自身を除く): 510059140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10201181, 20402362, 40804724, 51005905, 81609448, 102011810, 204023620, 408047240]

約数ペア:

[(1, 408047240), (2, 204023620), (4, 102011810), (5, 81609448), (8, 51005905), (10, 40804724), (20, 20402362), (40, 10201181)]