399500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:83

約数の個数: 48

約数和(自身を含む): 943488

約数和(自身を除く): 543988

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 47, 50, 68, 85, 94, 100, 125, 170, 188, 235, 250, 340, 425, 470, 500, 799, 850, 940, 1175, 1598, 1700, 2125, 2350, 3196, 3995, 4250, 4700, 5875, 7990, 8500, 11750, 15980, 19975, 23500, 39950, 79900, 99875, 199750, 399500]

約数ペア:

[(1, 399500), (2, 199750), (4, 99875), (5, 79900), (10, 39950), (17, 23500), (20, 19975), (25, 15980), (34, 11750), (47, 8500), (50, 7990), (68, 5875), (85, 4700), (94, 4250), (100, 3995), (125, 3196), (170, 2350), (188, 2125), (235, 1700), (250, 1598), (340, 1175), (425, 940), (470, 850), (500, 799)]