20649810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8713}}^1$

素因数の和:8802

約数の個数: 32

約数和(自身を含む): 50192640

約数和(自身を除く): 29542830

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 8713, 17426, 26139, 43565, 52278, 87130, 130695, 261390, 688327, 1376654, 2064981, 3441635, 4129962, 6883270, 10324905, 20649810]

約数ペア:

[(1, 20649810), (2, 10324905), (3, 6883270), (5, 4129962), (6, 3441635), (10, 2064981), (15, 1376654), (30, 688327), (79, 261390), (158, 130695), (237, 87130), (395, 52278), (474, 43565), (790, 26139), (1185, 17426), (2370, 8713)]