78942640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4861}}^1$

素因数の和:4910

約数の個数: 80

約数和(自身を含む): 217039680

約数和(自身を除く): 138097040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3248, 4060, 4861, 8120, 9722, 16240, 19444, 24305, 34027, 38888, 48610, 68054, 77776, 97220, 136108, 140969, 170135, 194440, 272216, 281938, 340270, 388880, 544432, 563876, 680540, 704845, 986783, 1127752, 1361080, 1409690, 1973566, 2255504, 2722160, 2819380, 3947132, 4933915, 5638760, 7894264, 9867830, 11277520, 15788528, 19735660, 39471320, 78942640]

約数ペア:

[(1, 78942640), (2, 39471320), (4, 19735660), (5, 15788528), (7, 11277520), (8, 9867830), (10, 7894264), (14, 5638760), (16, 4933915), (20, 3947132), (28, 2819380), (29, 2722160), (35, 2255504), (40, 1973566), (56, 1409690), (58, 1361080), (70, 1127752), (80, 986783), (112, 704845), (116, 680540), (140, 563876), (145, 544432), (203, 388880), (232, 340270), (280, 281938), (290, 272216), (406, 194440), (464, 170135), (560, 140969), (580, 136108), (812, 97220), (1015, 77776), (1160, 68054), (1624, 48610), (2030, 38888), (2320, 34027), (3248, 24305), (4060, 19444), (4861, 16240), (8120, 9722)]