81579810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209179}}^1$

素因数の和:209202

約数の個数: 32

約数和(自身を含む): 210853440

約数和(自身を除く): 129273630

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 209179, 418358, 627537, 1045895, 1255074, 2091790, 2719327, 3137685, 5438654, 6275370, 8157981, 13596635, 16315962, 27193270, 40789905, 81579810]

約数ペア:

[(1, 81579810), (2, 40789905), (3, 27193270), (5, 16315962), (6, 13596635), (10, 8157981), (13, 6275370), (15, 5438654), (26, 3137685), (30, 2719327), (39, 2091790), (65, 1255074), (78, 1045895), (130, 627537), (195, 418358), (390, 209179)]