3994220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4871}}^1$

素因数の和:4921

約数の個数: 24

約数和(自身を含む): 8594208

約数和(自身を除く): 4599988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 4871, 9742, 19484, 24355, 48710, 97420, 199711, 399422, 798844, 998555, 1997110, 3994220]

約数ペア:

[(1, 3994220), (2, 1997110), (4, 998555), (5, 798844), (10, 399422), (20, 199711), (41, 97420), (82, 48710), (164, 24355), (205, 19484), (410, 9742), (820, 4871)]