90271760

素因数分解:

$2^4\times 5^1\times {\mathrm{1128397}}^1$

素因数の和:1128410

約数の個数: 20

約数和(自身を含む): 209882028

約数和(自身を除く): 119610268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1128397, 2256794, 4513588, 5641985, 9027176, 11283970, 18054352, 22567940, 45135880, 90271760]

約数ペア:

[(1, 90271760), (2, 45135880), (4, 22567940), (5, 18054352), (8, 11283970), (10, 9027176), (16, 5641985), (20, 4513588), (40, 2256794), (80, 1128397)]