9987500

素因数分解:

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

素因数の和:93

約数の個数: 72

約数和(自身を含む): 23623488

約数和(自身を除く): 13635988

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, 625, 799, 850, 940, 1175, 1250, 1598, 1700, 2125, 2350, 2500, 3125, 3196, 3995, 4250, 4700, 5875, 6250, 7990, 8500, 10625, 11750, 12500, 15980, 19975, 21250, 23500, 29375, 39950, 42500, 53125, 58750, 79900, 99875, 106250, 117500, 146875, 199750, 212500, 293750, 399500, 499375, 587500, 998750, 1997500, 2496875, 4993750, 9987500]

約数ペア:

[(1, 9987500), (2, 4993750), (4, 2496875), (5, 1997500), (10, 998750), (17, 587500), (20, 499375), (25, 399500), (34, 293750), (47, 212500), (50, 199750), (68, 146875), (85, 117500), (94, 106250), (100, 99875), (125, 79900), (170, 58750), (188, 53125), (235, 42500), (250, 39950), (340, 29375), (425, 23500), (470, 21250), (500, 19975), (625, 15980), (799, 12500), (850, 11750), (940, 10625), (1175, 8500), (1250, 7990), (1598, 6250), (1700, 5875), (2125, 4700), (2350, 4250), (2500, 3995), (3125, 3196)]