2650960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2549}}^1$

素因数の和:2575

約数の個数: 40

約数和(自身を含む): 6640200

約数和(自身を除く): 3989240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2549, 5098, 10196, 12745, 20392, 25490, 33137, 40784, 50980, 66274, 101960, 132548, 165685, 203920, 265096, 331370, 530192, 662740, 1325480, 2650960]

約数ペア:

[(1, 2650960), (2, 1325480), (4, 662740), (5, 530192), (8, 331370), (10, 265096), (13, 203920), (16, 165685), (20, 132548), (26, 101960), (40, 66274), (52, 50980), (65, 40784), (80, 33137), (104, 25490), (130, 20392), (208, 12745), (260, 10196), (520, 5098), (1040, 2549)]