31507710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80789}}^1$

素因数の和:80812

約数の個数: 32

約数和(自身を含む): 81436320

約数和(自身を除く): 49928610

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 80789, 161578, 242367, 403945, 484734, 807890, 1050257, 1211835, 2100514, 2423670, 3150771, 5251285, 6301542, 10502570, 15753855, 31507710]

約数ペア:

[(1, 31507710), (2, 15753855), (3, 10502570), (5, 6301542), (6, 5251285), (10, 3150771), (13, 2423670), (15, 2100514), (26, 1211835), (30, 1050257), (39, 807890), (65, 484734), (78, 403945), (130, 242367), (195, 161578), (390, 80789)]