19411760

素因数分解:

$2^4\times 5^1\times {\mathrm{242647}}^1$

素因数の和:242660

約数の個数: 20

約数和(自身を含む): 45132528

約数和(自身を除く): 25720768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242647, 485294, 970588, 1213235, 1941176, 2426470, 3882352, 4852940, 9705880, 19411760]

約数ペア:

[(1, 19411760), (2, 9705880), (4, 4852940), (5, 3882352), (8, 2426470), (10, 1941176), (16, 1213235), (20, 970588), (40, 485294), (80, 242647)]