8120120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4721}}^1$

素因数の和:4775

約数の個数: 32

約数和(自身を含む): 18699120

約数和(自身を除く): 10579000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4721, 9442, 18884, 23605, 37768, 47210, 94420, 188840, 203003, 406006, 812012, 1015015, 1624024, 2030030, 4060060, 8120120]

約数ペア:

[(1, 8120120), (2, 4060060), (4, 2030030), (5, 1624024), (8, 1015015), (10, 812012), (20, 406006), (40, 203003), (43, 188840), (86, 94420), (172, 47210), (215, 37768), (344, 23605), (430, 18884), (860, 9442), (1720, 4721)]