8160020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1279}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 19353600

約数和(自身を除く): 11193580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1279, 1595, 2558, 3190, 5116, 6380, 6395, 12790, 14069, 25580, 28138, 37091, 56276, 70345, 74182, 140690, 148364, 185455, 281380, 370910, 408001, 741820, 816002, 1632004, 2040005, 4080010, 8160020]

約数ペア:

[(1, 8160020), (2, 4080010), (4, 2040005), (5, 1632004), (10, 816002), (11, 741820), (20, 408001), (22, 370910), (29, 281380), (44, 185455), (55, 148364), (58, 140690), (110, 74182), (116, 70345), (145, 56276), (220, 37091), (290, 28138), (319, 25580), (580, 14069), (638, 12790), (1276, 6395), (1279, 6380), (1595, 5116), (2558, 3190)]