31212140

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3931}}^1$

素因数の和:4337

約数の個数: 24

約数和(自身を含む): 65727312

約数和(自身を除く): 34515172

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3931, 3970, 7862, 7940, 15724, 19655, 39310, 78620, 1560607, 3121214, 6242428, 7803035, 15606070, 31212140]

約数ペア:

[(1, 31212140), (2, 15606070), (4, 7803035), (5, 6242428), (10, 3121214), (20, 1560607), (397, 78620), (794, 39310), (1588, 19655), (1985, 15724), (3931, 7940), (3970, 7862)]