19515820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13367}}^1$

素因数の和:13449

約数の個数: 24

約数和(自身を含む): 41547744

約数和(自身を除く): 22031924

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 13367, 26734, 53468, 66835, 133670, 267340, 975791, 1951582, 3903164, 4878955, 9757910, 19515820]

約数ペア:

[(1, 19515820), (2, 9757910), (4, 4878955), (5, 3903164), (10, 1951582), (20, 975791), (73, 267340), (146, 133670), (292, 66835), (365, 53468), (730, 26734), (1460, 13367)]