409899080

素因数分解:

$2^3\times 5^1\times {\mathrm{10247477}}^1$

素因数の和:10247488

約数の個数: 16

約数和(自身を含む): 922273020

約数和(自身を除く): 512373940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10247477, 20494954, 40989908, 51237385, 81979816, 102474770, 204949540, 409899080]

約数ペア:

[(1, 409899080), (2, 204949540), (4, 102474770), (5, 81979816), (8, 51237385), (10, 40989908), (20, 20494954), (40, 10247477)]