38916140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21863}}^1$

素因数の和:21961

約数の個数: 24

約数和(自身を含む): 82645920

約数和(自身を除く): 43729780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 21863, 43726, 87452, 109315, 218630, 437260, 1945807, 3891614, 7783228, 9729035, 19458070, 38916140]

約数ペア:

[(1, 38916140), (2, 19458070), (4, 9729035), (5, 7783228), (10, 3891614), (20, 1945807), (89, 437260), (178, 218630), (356, 109315), (445, 87452), (890, 43726), (1780, 21863)]