20707620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1283}}^1$

素因数の和:1564

約数の個数: 48

約数和(自身を含む): 58242240

約数和(自身を除く): 37534620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 269, 538, 807, 1076, 1283, 1345, 1614, 2566, 2690, 3228, 3849, 4035, 5132, 5380, 6415, 7698, 8070, 12830, 15396, 16140, 19245, 25660, 38490, 76980, 345127, 690254, 1035381, 1380508, 1725635, 2070762, 3451270, 4141524, 5176905, 6902540, 10353810, 20707620]

約数ペア:

[(1, 20707620), (2, 10353810), (3, 6902540), (4, 5176905), (5, 4141524), (6, 3451270), (10, 2070762), (12, 1725635), (15, 1380508), (20, 1035381), (30, 690254), (60, 345127), (269, 76980), (538, 38490), (807, 25660), (1076, 19245), (1283, 16140), (1345, 15396), (1614, 12830), (2566, 8070), (2690, 7698), (3228, 6415), (3849, 5380), (4035, 5132)]