18981664

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 40727232

約数和(自身を除く): 21745568

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 103, 104, 206, 208, 412, 416, 443, 824, 886, 1339, 1648, 1772, 2678, 3296, 3544, 5356, 5759, 7088, 10712, 11518, 14176, 21424, 23036, 42848, 45629, 46072, 91258, 92144, 182516, 184288, 365032, 593177, 730064, 1186354, 1460128, 2372708, 4745416, 9490832, 18981664]

約数ペア:

[(1, 18981664), (2, 9490832), (4, 4745416), (8, 2372708), (13, 1460128), (16, 1186354), (26, 730064), (32, 593177), (52, 365032), (103, 184288), (104, 182516), (206, 92144), (208, 91258), (412, 46072), (416, 45629), (443, 42848), (824, 23036), (886, 21424), (1339, 14176), (1648, 11518), (1772, 10712), (2678, 7088), (3296, 5759), (3544, 5356)]