71800820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{39451}}^1$

素因数の和:39480

約数の個数: 48

約数和(自身を含む): 185582208

約数和(自身を除く): 113781388

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 39451, 78902, 157804, 197255, 276157, 394510, 512863, 552314, 789020, 1025726, 1104628, 1380785, 2051452, 2564315, 2761570, 3590041, 5128630, 5523140, 7180082, 10257260, 14360164, 17950205, 35900410, 71800820]

約数ペア:

[(1, 71800820), (2, 35900410), (4, 17950205), (5, 14360164), (7, 10257260), (10, 7180082), (13, 5523140), (14, 5128630), (20, 3590041), (26, 2761570), (28, 2564315), (35, 2051452), (52, 1380785), (65, 1104628), (70, 1025726), (91, 789020), (130, 552314), (140, 512863), (182, 394510), (260, 276157), (364, 197255), (455, 157804), (910, 78902), (1820, 39451)]