20121032452

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{127837}}^1$

素因数の和:127988

約数の個数: 36

約数和(自身を含む): 37503834060

約数和(自身を除く): 17382801608

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 361, 436, 722, 1444, 2071, 4142, 8284, 39349, 78698, 127837, 157396, 255674, 511348, 2428903, 4857806, 9715612, 13934233, 27868466, 46149157, 55736932, 92298314, 184596628, 264750427, 529500854, 1059001708, 5030258113, 10060516226, 20121032452]

約数ペア:

[(1, 20121032452), (2, 10060516226), (4, 5030258113), (19, 1059001708), (38, 529500854), (76, 264750427), (109, 184596628), (218, 92298314), (361, 55736932), (436, 46149157), (722, 27868466), (1444, 13934233), (2071, 9715612), (4142, 4857806), (8284, 2428903), (39349, 511348), (78698, 255674), (127837, 157396)]