16915000

素因数分解:

$2^3\times 5^4\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 42174000

約数和(自身を除く): 25259000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 199, 200, 250, 340, 398, 425, 500, 625, 680, 796, 850, 995, 1000, 1250, 1592, 1700, 1990, 2125, 2500, 3383, 3400, 3980, 4250, 4975, 5000, 6766, 7960, 8500, 9950, 10625, 13532, 16915, 17000, 19900, 21250, 24875, 27064, 33830, 39800, 42500, 49750, 67660, 84575, 85000, 99500, 124375, 135320, 169150, 199000, 248750, 338300, 422875, 497500, 676600, 845750, 995000, 1691500, 2114375, 3383000, 4228750, 8457500, 16915000]

約数ペア:

[(1, 16915000), (2, 8457500), (4, 4228750), (5, 3383000), (8, 2114375), (10, 1691500), (17, 995000), (20, 845750), (25, 676600), (34, 497500), (40, 422875), (50, 338300), (68, 248750), (85, 199000), (100, 169150), (125, 135320), (136, 124375), (170, 99500), (199, 85000), (200, 84575), (250, 67660), (340, 49750), (398, 42500), (425, 39800), (500, 33830), (625, 27064), (680, 24875), (796, 21250), (850, 19900), (995, 17000), (1000, 16915), (1250, 13532), (1592, 10625), (1700, 9950), (1990, 8500), (2125, 7960), (2500, 6766), (3383, 5000), (3400, 4975), (3980, 4250)]