2641220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3221}}^1$

素因数の和:3271

約数の個数: 24

約数和(自身を含む): 5683608

約数和(自身を除く): 3042388

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 3221, 6442, 12884, 16105, 32210, 64420, 132061, 264122, 528244, 660305, 1320610, 2641220]

約数ペア:

[(1, 2641220), (2, 1320610), (4, 660305), (5, 528244), (10, 264122), (20, 132061), (41, 64420), (82, 32210), (164, 16105), (205, 12884), (410, 6442), (820, 3221)]