31191810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79979}}^1$

素因数の和:80002

約数の個数: 32

約数和(自身を含む): 80619840

約数和(自身を除く): 49428030

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 79979, 159958, 239937, 399895, 479874, 799790, 1039727, 1199685, 2079454, 2399370, 3119181, 5198635, 6238362, 10397270, 15595905, 31191810]

約数ペア:

[(1, 31191810), (2, 15595905), (3, 10397270), (5, 6238362), (6, 5198635), (10, 3119181), (13, 2399370), (15, 2079454), (26, 1199685), (30, 1039727), (39, 799790), (65, 479874), (78, 399895), (130, 239937), (195, 159958), (390, 79979)]