90012080

素因数分解:

$2^4\times 5^1\times {\mathrm{1125151}}^1$

素因数の和:1125164

約数の個数: 20

約数和(自身を含む): 209278272

約数和(自身を除く): 119266192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1125151, 2250302, 4500604, 5625755, 9001208, 11251510, 18002416, 22503020, 45006040, 90012080]

約数ペア:

[(1, 90012080), (2, 45006040), (4, 22503020), (5, 18002416), (8, 11251510), (10, 9001208), (16, 5625755), (20, 4500604), (40, 2250302), (80, 1125151)]