18158992640

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{489197}}^1$

素因数の和:489247

約数の個数: 72

約数和(自身を含む): 44996432040

約数和(自身を除く): 26837439400

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, 580, 640, 928, 1160, 1280, 1856, 2320, 3712, 4640, 7424, 9280, 18560, 37120, 489197, 978394, 1956788, 2445985, 3913576, 4891970, 7827152, 9783940, 14186713, 15654304, 19567880, 28373426, 31308608, 39135760, 56746852, 62617216, 70933565, 78271520, 113493704, 125234432, 141867130, 156543040, 226987408, 283734260, 313086080, 453974816, 567468520, 626172160, 907949632, 1134937040, 1815899264, 2269874080, 3631798528, 4539748160, 9079496320, 18158992640]

約数ペア:

[(1, 18158992640), (2, 9079496320), (4, 4539748160), (5, 3631798528), (8, 2269874080), (10, 1815899264), (16, 1134937040), (20, 907949632), (29, 626172160), (32, 567468520), (40, 453974816), (58, 313086080), (64, 283734260), (80, 226987408), (116, 156543040), (128, 141867130), (145, 125234432), (160, 113493704), (232, 78271520), (256, 70933565), (290, 62617216), (320, 56746852), (464, 39135760), (580, 31308608), (640, 28373426), (928, 19567880), (1160, 15654304), (1280, 14186713), (1856, 9783940), (2320, 7827152), (3712, 4891970), (4640, 3913576), (7424, 2445985), (9280, 1956788), (18560, 978394), (37120, 489197)]