87580180

素因数分解:

$2^2\times 5^1\times {\mathrm{4379009}}^1$

素因数の和:4379018

約数の個数: 12

約数和(自身を含む): 183918420

約数和(自身を除く): 96338240

約数列:

[1, 2, 4, 5, 10, 20, 4379009, 8758018, 17516036, 21895045, 43790090, 87580180]

約数ペア:

[(1, 87580180), (2, 43790090), (4, 21895045), (5, 17516036), (10, 8758018), (20, 4379009)]