489644545

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{3889}}^1$

素因数の和:4069

約数の個数: 24

約数和(自身を含む): 640683000

約数和(自身を除く): 151038455

約数列:

[1, 5, 13, 65, 149, 169, 745, 845, 1937, 3889, 9685, 19445, 25181, 50557, 125905, 252785, 579461, 657241, 2897305, 3286205, 7532993, 37664965, 97928909, 489644545]

約数ペア:

[(1, 489644545), (5, 97928909), (13, 37664965), (65, 7532993), (149, 3286205), (169, 2897305), (745, 657241), (845, 579461), (1937, 252785), (3889, 125905), (9685, 50557), (19445, 25181)]