2636840

素因数分解:

$2^3\times 5^1\times {\mathrm{65921}}^1$

素因数の和:65932

約数の個数: 16

約数和(自身を含む): 5932980

約数和(自身を除く): 3296140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 65921, 131842, 263684, 329605, 527368, 659210, 1318420, 2636840]

約数ペア:

[(1, 2636840), (2, 1318420), (4, 659210), (5, 527368), (8, 329605), (10, 263684), (20, 131842), (40, 65921)]