81649502

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 136857600

約数和(自身を除く): 55208098

約数列:

[1, 2, 11, 22, 79, 109, 158, 218, 431, 862, 869, 1199, 1738, 2398, 4741, 8611, 9482, 17222, 34049, 46979, 68098, 93958, 94721, 189442, 374539, 516769, 749078, 1033538, 3711341, 7422682, 40824751, 81649502]

約数ペア:

[(1, 81649502), (2, 40824751), (11, 7422682), (22, 3711341), (79, 1033538), (109, 749078), (158, 516769), (218, 374539), (431, 189442), (862, 94721), (869, 93958), (1199, 68098), (1738, 46979), (2398, 34049), (4741, 17222), (8611, 9482)]