30681287

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 9380665

約数列:

[1, 7, 13, 23, 91, 107, 137, 161, 299, 749, 959, 1391, 1781, 2093, 2461, 3151, 9737, 12467, 14659, 17227, 22057, 31993, 40963, 102613, 190567, 223951, 286741, 337157, 1333969, 2360099, 4383041, 30681287]

約数ペア:

[(1, 30681287), (7, 4383041), (13, 2360099), (23, 1333969), (91, 337157), (107, 286741), (137, 223951), (161, 190567), (299, 102613), (749, 40963), (959, 31993), (1391, 22057), (1781, 17227), (2093, 14659), (2461, 12467), (3151, 9737)]