18528980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54497}}^1$

素因数の和:54523

約数の個数: 24

約数和(自身を含む): 41200488

約数和(自身を除く): 22671508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54497, 108994, 217988, 272485, 544970, 926449, 1089940, 1852898, 3705796, 4632245, 9264490, 18528980]

約数ペア:

[(1, 18528980), (2, 9264490), (4, 4632245), (5, 3705796), (10, 1852898), (17, 1089940), (20, 926449), (34, 544970), (68, 272485), (85, 217988), (170, 108994), (340, 54497)]