28387500

素因数分解:

$2^2\times 3^1\times 5^5\times {\mathrm{757}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 82900944

約数和(自身を除く): 54513444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 625, 750, 757, 1250, 1500, 1514, 1875, 2271, 2500, 3028, 3125, 3750, 3785, 4542, 6250, 7500, 7570, 9084, 9375, 11355, 12500, 15140, 18750, 18925, 22710, 37500, 37850, 45420, 56775, 75700, 94625, 113550, 189250, 227100, 283875, 378500, 473125, 567750, 946250, 1135500, 1419375, 1892500, 2365625, 2838750, 4731250, 5677500, 7096875, 9462500, 14193750, 28387500]

約数ペア:

[(1, 28387500), (2, 14193750), (3, 9462500), (4, 7096875), (5, 5677500), (6, 4731250), (10, 2838750), (12, 2365625), (15, 1892500), (20, 1419375), (25, 1135500), (30, 946250), (50, 567750), (60, 473125), (75, 378500), (100, 283875), (125, 227100), (150, 189250), (250, 113550), (300, 94625), (375, 75700), (500, 56775), (625, 45420), (750, 37850), (757, 37500), (1250, 22710), (1500, 18925), (1514, 18750), (1875, 15140), (2271, 12500), (2500, 11355), (3028, 9375), (3125, 9084), (3750, 7570), (3785, 7500), (4542, 6250)]