221497660

素因数分解:

$2^2\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{8867}}^1$

素因数の和:10125

約数の個数: 24

約数和(自身を含む): 465570000

約数和(自身を除く): 244072340

約数列:

[1, 2, 4, 5, 10, 20, 1249, 2498, 4996, 6245, 8867, 12490, 17734, 24980, 35468, 44335, 88670, 177340, 11074883, 22149766, 44299532, 55374415, 110748830, 221497660]

約数ペア:

[(1, 221497660), (2, 110748830), (4, 55374415), (5, 44299532), (10, 22149766), (20, 11074883), (1249, 177340), (2498, 88670), (4996, 44335), (6245, 35468), (8867, 24980), (12490, 17734)]