20792420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3259}}^1$

素因数の和:3308

約数の個数: 48

約数和(自身を含む): 49291200

約数和(自身を除く): 28498780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 3259, 6380, 6518, 13036, 16295, 32590, 35849, 65180, 71698, 94511, 143396, 179245, 189022, 358490, 378044, 472555, 716980, 945110, 1039621, 1890220, 2079242, 4158484, 5198105, 10396210, 20792420]

約数ペア:

[(1, 20792420), (2, 10396210), (4, 5198105), (5, 4158484), (10, 2079242), (11, 1890220), (20, 1039621), (22, 945110), (29, 716980), (44, 472555), (55, 378044), (58, 358490), (110, 189022), (116, 179245), (145, 143396), (220, 94511), (290, 71698), (319, 65180), (580, 35849), (638, 32590), (1276, 16295), (1595, 13036), (3190, 6518), (3259, 6380)]