19251500

素因数分解:

$2^2\times 5^3\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 42500640

約数和(自身を除く): 23249140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 139, 250, 277, 278, 500, 554, 556, 695, 1108, 1385, 1390, 2770, 2780, 3475, 5540, 6925, 6950, 13850, 13900, 17375, 27700, 34625, 34750, 38503, 69250, 69500, 77006, 138500, 154012, 192515, 385030, 770060, 962575, 1925150, 3850300, 4812875, 9625750, 19251500]

約数ペア:

[(1, 19251500), (2, 9625750), (4, 4812875), (5, 3850300), (10, 1925150), (20, 962575), (25, 770060), (50, 385030), (100, 192515), (125, 154012), (139, 138500), (250, 77006), (277, 69500), (278, 69250), (500, 38503), (554, 34750), (556, 34625), (695, 27700), (1108, 17375), (1385, 13900), (1390, 13850), (2770, 6950), (2780, 6925), (3475, 5540)]