31271140

素因数分解:

$2^2\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{1289}}^1$

素因数の和:2511

約数の個数: 24

約数和(自身を含む): 65774520

約数和(自身を除く): 34503380

約数列:

[1, 2, 4, 5, 10, 20, 1213, 1289, 2426, 2578, 4852, 5156, 6065, 6445, 12130, 12890, 24260, 25780, 1563557, 3127114, 6254228, 7817785, 15635570, 31271140]

約数ペア:

[(1, 31271140), (2, 15635570), (4, 7817785), (5, 6254228), (10, 3127114), (20, 1563557), (1213, 25780), (1289, 24260), (2426, 12890), (2578, 12130), (4852, 6445), (5156, 6065)]