639484328

素因数分解:

$2^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{113063}}^1$

素因数の和:113177

約数の個数: 32

約数和(自身を含む): 1383903360

約数和(自身を除く): 744419032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 101, 202, 404, 707, 808, 1414, 2828, 5656, 113063, 226126, 452252, 791441, 904504, 1582882, 3165764, 6331528, 11419363, 22838726, 45677452, 79935541, 91354904, 159871082, 319742164, 639484328]

約数ペア:

[(1, 639484328), (2, 319742164), (4, 159871082), (7, 91354904), (8, 79935541), (14, 45677452), (28, 22838726), (56, 11419363), (101, 6331528), (202, 3165764), (404, 1582882), (707, 904504), (808, 791441), (1414, 452252), (2828, 226126), (5656, 113063)]