20779660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3257}}^1$

素因数の和:3306

約数の個数: 48

約数和(自身を含む): 49260960

約数和(自身を除く): 28481300

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, 3257, 6380, 6514, 13028, 16285, 32570, 35827, 65140, 71654, 94453, 143308, 179135, 188906, 358270, 377812, 472265, 716540, 944530, 1038983, 1889060, 2077966, 4155932, 5194915, 10389830, 20779660]

約数ペア:

[(1, 20779660), (2, 10389830), (4, 5194915), (5, 4155932), (10, 2077966), (11, 1889060), (20, 1038983), (22, 944530), (29, 716540), (44, 472265), (55, 377812), (58, 358270), (110, 188906), (116, 179135), (145, 143308), (220, 94453), (290, 71654), (319, 65140), (580, 35827), (638, 32570), (1276, 16285), (1595, 13028), (3190, 6514), (3257, 6380)]