27987355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 11903525

約数列:

[1, 5, 11, 17, 37, 55, 85, 185, 187, 407, 629, 809, 935, 2035, 3145, 4045, 6919, 8899, 13753, 29933, 34595, 44495, 68765, 149665, 151283, 329263, 508861, 756415, 1646315, 2544305, 5597471, 27987355]

約数ペア:

[(1, 27987355), (5, 5597471), (11, 2544305), (17, 1646315), (37, 756415), (55, 508861), (85, 329263), (185, 151283), (187, 149665), (407, 68765), (629, 44495), (809, 34595), (935, 29933), (2035, 13753), (3145, 8899), (4045, 6919)]