87816140

素因数分解:

$2^2\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{3433}}^1$

素因数の和:4721

約数の個数: 24

約数和(自身を含む): 184611840

約数和(自身を除く): 96795700

約数列:

[1, 2, 4, 5, 10, 20, 1279, 2558, 3433, 5116, 6395, 6866, 12790, 13732, 17165, 25580, 34330, 68660, 4390807, 8781614, 17563228, 21954035, 43908070, 87816140]

約数ペア:

[(1, 87816140), (2, 43908070), (4, 21954035), (5, 17563228), (10, 8781614), (20, 4390807), (1279, 68660), (2558, 34330), (3433, 25580), (5116, 17165), (6395, 13732), (6866, 12790)]