68401580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263083}}^1$

素因数の和:263105

約数の個数: 24

約数和(自身を含む): 154693392

約数和(自身を除く): 86291812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263083, 526166, 1052332, 1315415, 2630830, 3420079, 5261660, 6840158, 13680316, 17100395, 34200790, 68401580]

約数ペア:

[(1, 68401580), (2, 34200790), (4, 17100395), (5, 13680316), (10, 6840158), (13, 5261660), (20, 3420079), (26, 2630830), (52, 1315415), (65, 1052332), (130, 526166), (260, 263083)]