20121482440

素因数分解:

$2^3\times 5^1\times {\mathrm{1759}}^1\times {\mathrm{285979}}^1$

素因数の和:287749

約数の個数: 32

約数和(自身を含む): 45299232000

約数和(自身を除く): 25177749560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1759, 3518, 7036, 8795, 14072, 17590, 35180, 70360, 285979, 571958, 1143916, 1429895, 2287832, 2859790, 5719580, 11439160, 503037061, 1006074122, 2012148244, 2515185305, 4024296488, 5030370610, 10060741220, 20121482440]

約数ペア:

[(1, 20121482440), (2, 10060741220), (4, 5030370610), (5, 4024296488), (8, 2515185305), (10, 2012148244), (20, 1006074122), (40, 503037061), (1759, 11439160), (3518, 5719580), (7036, 2859790), (8795, 2287832), (14072, 1429895), (17590, 1143916), (35180, 571958), (70360, 285979)]