90680120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{52721}}^1$

素因数の和:52775

約数の個数: 32

約数和(自身を含む): 208779120

約数和(自身を除く): 118099000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 52721, 105442, 210884, 263605, 421768, 527210, 1054420, 2108840, 2267003, 4534006, 9068012, 11335015, 18136024, 22670030, 45340060, 90680120]

約数ペア:

[(1, 90680120), (2, 45340060), (4, 22670030), (5, 18136024), (8, 11335015), (10, 9068012), (20, 4534006), (40, 2267003), (43, 2108840), (86, 1054420), (172, 527210), (215, 421768), (344, 263605), (430, 210884), (860, 105442), (1720, 52721)]