28804520440

素因数分解:

$2^3\times 5^1\times {\mathrm{720113011}}^1$

素因数の和:720113022

約数の個数: 16

約数和(自身を含む): 64810171080

約数和(自身を除く): 36005650640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 720113011, 1440226022, 2880452044, 3600565055, 5760904088, 7201130110, 14402260220, 28804520440]

約数ペア:

[(1, 28804520440), (2, 14402260220), (4, 7201130110), (5, 5760904088), (8, 3600565055), (10, 2880452044), (20, 1440226022), (40, 720113011)]