261626404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{10247}}^1$

素因数の和:10755

約数の個数: 24

約数和(自身を含む): 494117568

約数和(自身を除く): 232491164

約数列:

[1, 2, 4, 13, 26, 52, 491, 982, 1964, 6383, 10247, 12766, 20494, 25532, 40988, 133211, 266422, 532844, 5031277, 10062554, 20125108, 65406601, 130813202, 261626404]

約数ペア:

[(1, 261626404), (2, 130813202), (4, 65406601), (13, 20125108), (26, 10062554), (52, 5031277), (491, 532844), (982, 266422), (1964, 133211), (6383, 40988), (10247, 25532), (12766, 20494)]