20173540

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2593}}^1$

素因数の和:2991

約数の個数: 24

約数和(自身を含む): 42489720

約数和(自身を除く): 22316180

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 2593, 3890, 5186, 7780, 10372, 12965, 25930, 51860, 1008677, 2017354, 4034708, 5043385, 10086770, 20173540]

約数ペア:

[(1, 20173540), (2, 10086770), (4, 5043385), (5, 4034708), (10, 2017354), (20, 1008677), (389, 51860), (778, 25930), (1556, 12965), (1945, 10372), (2593, 7780), (3890, 5186)]