2564380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1409}}^1$

素因数の和:1438

約数の個数: 48

約数和(自身を含む): 6632640

約数和(自身を除く): 4068260

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, 1409, 1820, 2818, 5636, 7045, 9863, 14090, 18317, 19726, 28180, 36634, 39452, 49315, 73268, 91585, 98630, 128219, 183170, 197260, 256438, 366340, 512876, 641095, 1282190, 2564380]

約数ペア:

[(1, 2564380), (2, 1282190), (4, 641095), (5, 512876), (7, 366340), (10, 256438), (13, 197260), (14, 183170), (20, 128219), (26, 98630), (28, 91585), (35, 73268), (52, 49315), (65, 39452), (70, 36634), (91, 28180), (130, 19726), (140, 18317), (182, 14090), (260, 9863), (364, 7045), (455, 5636), (910, 2818), (1409, 1820)]