128983876

素因数分解:

$2^2\times 7^2\times {\mathrm{409}}^1\times {\mathrm{1609}}^1$

素因数の和:2036

約数の個数: 36

約数和(自身を含む): 263379900

約数和(自身を除く): 134396024

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 409, 818, 1609, 1636, 2863, 3218, 5726, 6436, 11263, 11452, 20041, 22526, 40082, 45052, 78841, 80164, 157682, 315364, 658081, 1316162, 2632324, 4606567, 9213134, 18426268, 32245969, 64491938, 128983876]

約数ペア:

[(1, 128983876), (2, 64491938), (4, 32245969), (7, 18426268), (14, 9213134), (28, 4606567), (49, 2632324), (98, 1316162), (196, 658081), (409, 315364), (818, 157682), (1609, 80164), (1636, 78841), (2863, 45052), (3218, 40082), (5726, 22526), (6436, 20041), (11263, 11452)]