280852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 578592

約数和(自身を除く): 297740

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 491, 572, 982, 1964, 5401, 6383, 10802, 12766, 21604, 25532, 70213, 140426, 280852]

約数ペア:

[(1, 280852), (2, 140426), (4, 70213), (11, 25532), (13, 21604), (22, 12766), (26, 10802), (44, 6383), (52, 5401), (143, 1964), (286, 982), (491, 572)]