2005040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:437

約数の個数: 40

約数和(自身を含む): 4740768

約数和(自身を除く): 2735728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 353, 355, 568, 706, 710, 1136, 1412, 1420, 1765, 2824, 2840, 3530, 5648, 5680, 7060, 14120, 25063, 28240, 50126, 100252, 125315, 200504, 250630, 401008, 501260, 1002520, 2005040]

約数ペア:

[(1, 2005040), (2, 1002520), (4, 501260), (5, 401008), (8, 250630), (10, 200504), (16, 125315), (20, 100252), (40, 50126), (71, 28240), (80, 25063), (142, 14120), (284, 7060), (353, 5680), (355, 5648), (568, 3530), (706, 2840), (710, 2824), (1136, 1765), (1412, 1420)]