19844900

素因数分解:

$2^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1039}}^1$

素因数の和:1244

約数の個数: 36

約数和(自身を含む): 43330560

約数和(自身を除く): 23485660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 191, 382, 764, 955, 1039, 1910, 2078, 3820, 4156, 4775, 5195, 9550, 10390, 19100, 20780, 25975, 51950, 103900, 198449, 396898, 793796, 992245, 1984490, 3968980, 4961225, 9922450, 19844900]

約数ペア:

[(1, 19844900), (2, 9922450), (4, 4961225), (5, 3968980), (10, 1984490), (20, 992245), (25, 793796), (50, 396898), (100, 198449), (191, 103900), (382, 51950), (764, 25975), (955, 20780), (1039, 19100), (1910, 10390), (2078, 9550), (3820, 5195), (4156, 4775)]