68505380

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{21817}}^1$

素因数の和:21983

約数の個数: 24

約数和(自身を含む): 144784248

約数和(自身を除く): 76278868

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 21817, 43634, 87268, 109085, 218170, 436340, 3425269, 6850538, 13701076, 17126345, 34252690, 68505380]

約数ペア:

[(1, 68505380), (2, 34252690), (4, 17126345), (5, 13701076), (10, 6850538), (20, 3425269), (157, 436340), (314, 218170), (628, 109085), (785, 87268), (1570, 43634), (3140, 21817)]