18530000

素因数分解:

$2^4\times 5^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 100

約数和(自身を含む): 47937780

約数和(自身を除く): 29407780

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 109, 125, 136, 170, 200, 218, 250, 272, 340, 400, 425, 436, 500, 545, 625, 680, 850, 872, 1000, 1090, 1250, 1360, 1700, 1744, 1853, 2000, 2125, 2180, 2500, 2725, 3400, 3706, 4250, 4360, 5000, 5450, 6800, 7412, 8500, 8720, 9265, 10000, 10625, 10900, 13625, 14824, 17000, 18530, 21250, 21800, 27250, 29648, 34000, 37060, 42500, 43600, 46325, 54500, 68125, 74120, 85000, 92650, 109000, 136250, 148240, 170000, 185300, 218000, 231625, 272500, 370600, 463250, 545000, 741200, 926500, 1090000, 1158125, 1853000, 2316250, 3706000, 4632500, 9265000, 18530000]

約数ペア:

[(1, 18530000), (2, 9265000), (4, 4632500), (5, 3706000), (8, 2316250), (10, 1853000), (16, 1158125), (17, 1090000), (20, 926500), (25, 741200), (34, 545000), (40, 463250), (50, 370600), (68, 272500), (80, 231625), (85, 218000), (100, 185300), (109, 170000), (125, 148240), (136, 136250), (170, 109000), (200, 92650), (218, 85000), (250, 74120), (272, 68125), (340, 54500), (400, 46325), (425, 43600), (436, 42500), (500, 37060), (545, 34000), (625, 29648), (680, 27250), (850, 21800), (872, 21250), (1000, 18530), (1090, 17000), (1250, 14824), (1360, 13625), (1700, 10900), (1744, 10625), (1853, 10000), (2000, 9265), (2125, 8720), (2180, 8500), (2500, 7412), (2725, 6800), (3400, 5450), (3706, 5000), (4250, 4360)]