89980720

素因数分解:

$2^4\times 5^1\times {\mathrm{1124759}}^1$

素因数の和:1124772

約数の個数: 20

約数和(自身を含む): 209205360

約数和(自身を除く): 119224640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1124759, 2249518, 4499036, 5623795, 8998072, 11247590, 17996144, 22495180, 44990360, 89980720]

約数ペア:

[(1, 89980720), (2, 44990360), (4, 22495180), (5, 17996144), (8, 11247590), (10, 8998072), (16, 5623795), (20, 4499036), (40, 2249518), (80, 1124759)]