18286000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:287

約数の個数: 80

約数和(自身を含む): 45497088

約数和(自身を除く): 27211088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 200, 205, 223, 250, 328, 400, 410, 446, 500, 656, 820, 892, 1000, 1025, 1115, 1640, 1784, 2000, 2050, 2230, 3280, 3568, 4100, 4460, 5125, 5575, 8200, 8920, 9143, 10250, 11150, 16400, 17840, 18286, 20500, 22300, 27875, 36572, 41000, 44600, 45715, 55750, 73144, 82000, 89200, 91430, 111500, 146288, 182860, 223000, 228575, 365720, 446000, 457150, 731440, 914300, 1142875, 1828600, 2285750, 3657200, 4571500, 9143000, 18286000]

約数ペア:

[(1, 18286000), (2, 9143000), (4, 4571500), (5, 3657200), (8, 2285750), (10, 1828600), (16, 1142875), (20, 914300), (25, 731440), (40, 457150), (41, 446000), (50, 365720), (80, 228575), (82, 223000), (100, 182860), (125, 146288), (164, 111500), (200, 91430), (205, 89200), (223, 82000), (250, 73144), (328, 55750), (400, 45715), (410, 44600), (446, 41000), (500, 36572), (656, 27875), (820, 22300), (892, 20500), (1000, 18286), (1025, 17840), (1115, 16400), (1640, 11150), (1784, 10250), (2000, 9143), (2050, 8920), (2230, 8200), (3280, 5575), (3568, 5125), (4100, 4460)]