85728860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{612349}}^1$

素因数の和:612365

約数の個数: 24

約数和(自身を含む): 205749600

約数和(自身を除く): 120020740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 612349, 1224698, 2449396, 3061745, 4286443, 6123490, 8572886, 12246980, 17145772, 21432215, 42864430, 85728860]

約数ペア:

[(1, 85728860), (2, 42864430), (4, 21432215), (5, 17145772), (7, 12246980), (10, 8572886), (14, 6123490), (20, 4286443), (28, 3061745), (35, 2449396), (70, 1224698), (140, 612349)]