220537970

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{1279}}^1$

素因数の和:1730

約数の個数: 32

約数和(自身を含む): 407531520

約数和(自身を除く): 186993550

約数列:

[1, 2, 5, 10, 43, 86, 215, 401, 430, 802, 1279, 2005, 2558, 4010, 6395, 12790, 17243, 34486, 54997, 86215, 109994, 172430, 274985, 512879, 549970, 1025758, 2564395, 5128790, 22053797, 44107594, 110268985, 220537970]

約数ペア:

[(1, 220537970), (2, 110268985), (5, 44107594), (10, 22053797), (43, 5128790), (86, 2564395), (215, 1025758), (401, 549970), (430, 512879), (802, 274985), (1279, 172430), (2005, 109994), (2558, 86215), (4010, 54997), (6395, 34486), (12790, 17243)]