2656840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 6036480

約数和(自身を除く): 3379640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 523, 635, 1016, 1046, 1270, 2092, 2540, 2615, 4184, 5080, 5230, 10460, 20920, 66421, 132842, 265684, 332105, 531368, 664210, 1328420, 2656840]

約数ペア:

[(1, 2656840), (2, 1328420), (4, 664210), (5, 531368), (8, 332105), (10, 265684), (20, 132842), (40, 66421), (127, 20920), (254, 10460), (508, 5230), (523, 5080), (635, 4184), (1016, 2615), (1046, 2540), (1270, 2092)]