20172596180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{721997}}^1$

素因数の和:722144

約数の個数: 48

約数和(自身を含む): 46577534976

約数和(自身を除く): 26404938796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 1270, 1397, 2540, 2794, 5588, 6985, 13970, 27940, 721997, 1443994, 2887988, 3609985, 7219970, 7941967, 14439940, 15883934, 31767868, 39709835, 79419670, 91693619, 158839340, 183387238, 366774476, 458468095, 916936190, 1008629809, 1833872380, 2017259618, 4034519236, 5043149045, 10086298090, 20172596180]

約数ペア:

[(1, 20172596180), (2, 10086298090), (4, 5043149045), (5, 4034519236), (10, 2017259618), (11, 1833872380), (20, 1008629809), (22, 916936190), (44, 458468095), (55, 366774476), (110, 183387238), (127, 158839340), (220, 91693619), (254, 79419670), (508, 39709835), (635, 31767868), (1270, 15883934), (1397, 14439940), (2540, 7941967), (2794, 7219970), (5588, 3609985), (6985, 2887988), (13970, 1443994), (27940, 721997)]