21772750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 22705970

約数列:

[1, 2, 5, 10, 17, 25, 34, 47, 50, 85, 94, 109, 125, 170, 218, 235, 250, 425, 470, 545, 799, 850, 1090, 1175, 1598, 1853, 2125, 2350, 2725, 3706, 3995, 4250, 5123, 5450, 5875, 7990, 9265, 10246, 11750, 13625, 18530, 19975, 25615, 27250, 39950, 46325, 51230, 87091, 92650, 99875, 128075, 174182, 199750, 231625, 256150, 435455, 463250, 640375, 870910, 1280750, 2177275, 4354550, 10886375, 21772750]

約数ペア:

[(1, 21772750), (2, 10886375), (5, 4354550), (10, 2177275), (17, 1280750), (25, 870910), (34, 640375), (47, 463250), (50, 435455), (85, 256150), (94, 231625), (109, 199750), (125, 174182), (170, 128075), (218, 99875), (235, 92650), (250, 87091), (425, 51230), (470, 46325), (545, 39950), (799, 27250), (850, 25615), (1090, 19975), (1175, 18530), (1598, 13625), (1853, 11750), (2125, 10246), (2350, 9265), (2725, 7990), (3706, 5875), (3995, 5450), (4250, 5123)]