78803140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{303089}}^1$

素因数の和:303111

約数の個数: 24

約数和(自身を含む): 178216920

約数和(自身を除く): 99413780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 303089, 606178, 1212356, 1515445, 3030890, 3940157, 6061780, 7880314, 15760628, 19700785, 39401570, 78803140]

約数ペア:

[(1, 78803140), (2, 39401570), (4, 19700785), (5, 15760628), (10, 7880314), (13, 6061780), (20, 3940157), (26, 3030890), (52, 1515445), (65, 1212356), (130, 606178), (260, 303089)]