68676140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264139}}^1$

素因数の和:264161

約数の個数: 24

約数和(自身を含む): 155314320

約数和(自身を除く): 86638180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264139, 528278, 1056556, 1320695, 2641390, 3433807, 5282780, 6867614, 13735228, 17169035, 34338070, 68676140]

約数ペア:

[(1, 68676140), (2, 34338070), (4, 17169035), (5, 13735228), (10, 6867614), (13, 5282780), (20, 3433807), (26, 2641390), (52, 1320695), (65, 1056556), (130, 528278), (260, 264139)]