20637944990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2009537}}^1$

素因数の和:2009636

約数の個数: 32

約数和(自身を含む): 40512286080

約数和(自身を除く): 19874341090

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 5135, 10270, 2009537, 4019074, 10047685, 20095370, 26123981, 52247962, 130619905, 158753423, 261239810, 317506846, 793767115, 1587534230, 2063794499, 4127588998, 10318972495, 20637944990]

約数ペア:

[(1, 20637944990), (2, 10318972495), (5, 4127588998), (10, 2063794499), (13, 1587534230), (26, 793767115), (65, 317506846), (79, 261239810), (130, 158753423), (158, 130619905), (395, 52247962), (790, 26123981), (1027, 20095370), (2054, 10047685), (5135, 4019074), (10270, 2009537)]