438409360

素因数分解:

$2^4\times 5^1\times {\mathrm{5480117}}^1$

素因数の和:5480130

約数の個数: 20

約数和(自身を含む): 1019301948

約数和(自身を除く): 580892588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5480117, 10960234, 21920468, 27400585, 43840936, 54801170, 87681872, 109602340, 219204680, 438409360]

約数ペア:

[(1, 438409360), (2, 219204680), (4, 109602340), (5, 87681872), (8, 54801170), (10, 43840936), (16, 27400585), (20, 21920468), (40, 10960234), (80, 5480117)]