2017256840

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{499321}}^1$

素因数の和:499433

約数の個数: 32

約数和(自身を含む): 4583775960

約数和(自身を除く): 2566519120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 499321, 998642, 1997284, 2496605, 3994568, 4993210, 9986420, 19972840, 50431421, 100862842, 201725684, 252157105, 403451368, 504314210, 1008628420, 2017256840]

約数ペア:

[(1, 2017256840), (2, 1008628420), (4, 504314210), (5, 403451368), (8, 252157105), (10, 201725684), (20, 100862842), (40, 50431421), (101, 19972840), (202, 9986420), (404, 4993210), (505, 3994568), (808, 2496605), (1010, 1997284), (2020, 998642), (4040, 499321)]