1320500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 3057600

約数和(自身を除く): 1737100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 139, 190, 250, 278, 380, 475, 500, 556, 695, 950, 1390, 1900, 2375, 2641, 2780, 3475, 4750, 5282, 6950, 9500, 10564, 13205, 13900, 17375, 26410, 34750, 52820, 66025, 69500, 132050, 264100, 330125, 660250, 1320500]

約数ペア:

[(1, 1320500), (2, 660250), (4, 330125), (5, 264100), (10, 132050), (19, 69500), (20, 66025), (25, 52820), (38, 34750), (50, 26410), (76, 17375), (95, 13900), (100, 13205), (125, 10564), (139, 9500), (190, 6950), (250, 5282), (278, 4750), (380, 3475), (475, 2780), (500, 2641), (556, 2375), (695, 1900), (950, 1390)]