311907970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{39937}}^1$

素因数の和:40026

約数の個数: 32

約数和(自身を含む): 621115776

約数和(自身を除く): 309207806

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 3905, 7810, 39937, 79874, 199685, 399370, 439307, 878614, 2196535, 2835527, 4393070, 5671054, 14177635, 28355270, 31190797, 62381594, 155953985, 311907970]

約数ペア:

[(1, 311907970), (2, 155953985), (5, 62381594), (10, 31190797), (11, 28355270), (22, 14177635), (55, 5671054), (71, 4393070), (110, 2835527), (142, 2196535), (355, 878614), (710, 439307), (781, 399370), (1562, 199685), (3905, 79874), (7810, 39937)]