78163640

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{12941}}^1$

素因数の和:13103

約数の個数: 32

約数和(自身を含む): 177046560

約数和(自身を除く): 98882920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 12941, 25882, 51764, 64705, 103528, 129410, 258820, 517640, 1954091, 3908182, 7816364, 9770455, 15632728, 19540910, 39081820, 78163640]

約数ペア:

[(1, 78163640), (2, 39081820), (4, 19540910), (5, 15632728), (8, 9770455), (10, 7816364), (20, 3908182), (40, 1954091), (151, 517640), (302, 258820), (604, 129410), (755, 103528), (1208, 64705), (1510, 51764), (3020, 25882), (6040, 12941)]