18404480

素因数分解:

$2^7\times 5^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 44523000

約数和(自身を除く): 26118520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 149, 160, 193, 298, 320, 386, 596, 640, 745, 772, 965, 1192, 1490, 1544, 1930, 2384, 2980, 3088, 3860, 4768, 5960, 6176, 7720, 9536, 11920, 12352, 15440, 19072, 23840, 24704, 28757, 30880, 47680, 57514, 61760, 95360, 115028, 123520, 143785, 230056, 287570, 460112, 575140, 920224, 1150280, 1840448, 2300560, 3680896, 4601120, 9202240, 18404480]

約数ペア:

[(1, 18404480), (2, 9202240), (4, 4601120), (5, 3680896), (8, 2300560), (10, 1840448), (16, 1150280), (20, 920224), (32, 575140), (40, 460112), (64, 287570), (80, 230056), (128, 143785), (149, 123520), (160, 115028), (193, 95360), (298, 61760), (320, 57514), (386, 47680), (596, 30880), (640, 28757), (745, 24704), (772, 23840), (965, 19072), (1192, 15440), (1490, 12352), (1544, 11920), (1930, 9536), (2384, 7720), (2980, 6176), (3088, 5960), (3860, 4768)]