68287180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{262643}}^1$

素因数の和:262665

約数の個数: 24

約数和(自身を含む): 154434672

約数和(自身を除く): 86147492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 262643, 525286, 1050572, 1313215, 2626430, 3414359, 5252860, 6828718, 13657436, 17071795, 34143590, 68287180]

約数ペア:

[(1, 68287180), (2, 34143590), (4, 17071795), (5, 13657436), (10, 6828718), (13, 5252860), (20, 3414359), (26, 2626430), (52, 1313215), (65, 1050572), (130, 525286), (260, 262643)]