206851520

素因数分解:

$2^6\times 5^1\times {\mathrm{646411}}^1$

素因数の和:646428

約数の個数: 28

約数和(自身を含む): 492565944

約数和(自身を除く): 285714424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 646411, 1292822, 2585644, 3232055, 5171288, 6464110, 10342576, 12928220, 20685152, 25856440, 41370304, 51712880, 103425760, 206851520]

約数ペア:

[(1, 206851520), (2, 103425760), (4, 51712880), (5, 41370304), (8, 25856440), (10, 20685152), (16, 12928220), (20, 10342576), (32, 6464110), (40, 5171288), (64, 3232055), (80, 2585644), (160, 1292822), (320, 646411)]