19038980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55997}}^1$

素因数の和:56023

約数の個数: 24

約数和(自身を含む): 42334488

約数和(自身を除く): 23295508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55997, 111994, 223988, 279985, 559970, 951949, 1119940, 1903898, 3807796, 4759745, 9519490, 19038980]

約数ペア:

[(1, 19038980), (2, 9519490), (4, 4759745), (5, 3807796), (10, 1903898), (17, 1119940), (20, 951949), (34, 559970), (68, 279985), (85, 223988), (170, 111994), (340, 55997)]