80597480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 189699840

約数和(自身を除く): 109102360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 860, 940, 997, 1720, 1880, 1994, 2021, 3988, 4042, 4985, 7976, 8084, 9970, 10105, 16168, 19940, 20210, 39880, 40420, 42871, 46859, 80840, 85742, 93718, 171484, 187436, 214355, 234295, 342968, 374872, 428710, 468590, 857420, 937180, 1714840, 1874360, 2014937, 4029874, 8059748, 10074685, 16119496, 20149370, 40298740, 80597480]

約数ペア:

[(1, 80597480), (2, 40298740), (4, 20149370), (5, 16119496), (8, 10074685), (10, 8059748), (20, 4029874), (40, 2014937), (43, 1874360), (47, 1714840), (86, 937180), (94, 857420), (172, 468590), (188, 428710), (215, 374872), (235, 342968), (344, 234295), (376, 214355), (430, 187436), (470, 171484), (860, 93718), (940, 85742), (997, 80840), (1720, 46859), (1880, 42871), (1994, 40420), (2021, 39880), (3988, 20210), (4042, 19940), (4985, 16168), (7976, 10105), (8084, 9970)]