858783020

素因数分解:

$2^2\times 5^1\times {\mathrm{3221}}^1\times {\mathrm{13331}}^1$

素因数の和:16561

約数の個数: 24

約数和(自身を含む): 1804139568

約数和(自身を除く): 945356548

約数列:

[1, 2, 4, 5, 10, 20, 3221, 6442, 12884, 13331, 16105, 26662, 32210, 53324, 64420, 66655, 133310, 266620, 42939151, 85878302, 171756604, 214695755, 429391510, 858783020]

約数ペア:

[(1, 858783020), (2, 429391510), (4, 214695755), (5, 171756604), (10, 85878302), (20, 42939151), (3221, 266620), (6442, 133310), (12884, 66655), (13331, 64420), (16105, 53324), (26662, 32210)]