20995660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149969}}^1$

素因数の和:149985

約数の個数: 24

約数和(自身を含む): 50389920

約数和(自身を除く): 29394260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149969, 299938, 599876, 749845, 1049783, 1499690, 2099566, 2999380, 4199132, 5248915, 10497830, 20995660]

約数ペア:

[(1, 20995660), (2, 10497830), (4, 5248915), (5, 4199132), (7, 2999380), (10, 2099566), (14, 1499690), (20, 1049783), (28, 749845), (35, 599876), (70, 299938), (140, 149969)]