81999844

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{3529}}^1$

素因数の和:3727

約数の個数: 24

約数和(自身を含む): 148358840

約数和(自身を除く): 66358996

約数列:

[1, 2, 4, 37, 74, 148, 157, 314, 628, 3529, 5809, 7058, 11618, 14116, 23236, 130573, 261146, 522292, 554053, 1108106, 2216212, 20499961, 40999922, 81999844]

約数ペア:

[(1, 81999844), (2, 40999922), (4, 20499961), (37, 2216212), (74, 1108106), (148, 554053), (157, 522292), (314, 261146), (628, 130573), (3529, 23236), (5809, 14116), (7058, 11618)]