87271760

素因数分解:

$2^4\times 5^1\times {\mathrm{1090897}}^1$

素因数の和:1090910

約数の個数: 20

約数和(自身を含む): 202907028

約数和(自身を除く): 115635268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1090897, 2181794, 4363588, 5454485, 8727176, 10908970, 17454352, 21817940, 43635880, 87271760]

約数ペア:

[(1, 87271760), (2, 43635880), (4, 21817940), (5, 17454352), (8, 10908970), (10, 8727176), (16, 5454485), (20, 4363588), (40, 2181794), (80, 1090897)]