18671360

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{503}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 46357920

約数和(自身を除く): 27686560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 503, 580, 640, 928, 1006, 1160, 1280, 1856, 2012, 2320, 2515, 3712, 4024, 4640, 5030, 7424, 8048, 9280, 10060, 14587, 16096, 18560, 20120, 29174, 32192, 37120, 40240, 58348, 64384, 72935, 80480, 116696, 128768, 145870, 160960, 233392, 291740, 321920, 466784, 583480, 643840, 933568, 1166960, 1867136, 2333920, 3734272, 4667840, 9335680, 18671360]

約数ペア:

[(1, 18671360), (2, 9335680), (4, 4667840), (5, 3734272), (8, 2333920), (10, 1867136), (16, 1166960), (20, 933568), (29, 643840), (32, 583480), (40, 466784), (58, 321920), (64, 291740), (80, 233392), (116, 160960), (128, 145870), (145, 128768), (160, 116696), (232, 80480), (256, 72935), (290, 64384), (320, 58348), (464, 40240), (503, 37120), (580, 32192), (640, 29174), (928, 20120), (1006, 18560), (1160, 16096), (1280, 14587), (1856, 10060), (2012, 9280), (2320, 8048), (2515, 7424), (3712, 5030), (4024, 4640)]