25521704

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 53143200

約数和(自身を除く): 27621496

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 169, 172, 338, 344, 439, 559, 676, 878, 1118, 1352, 1756, 2236, 3512, 4472, 5707, 7267, 11414, 14534, 18877, 22828, 29068, 37754, 45656, 58136, 74191, 75508, 148382, 151016, 245401, 296764, 490802, 593528, 981604, 1963208, 3190213, 6380426, 12760852, 25521704]

約数ペア:

[(1, 25521704), (2, 12760852), (4, 6380426), (8, 3190213), (13, 1963208), (26, 981604), (43, 593528), (52, 490802), (86, 296764), (104, 245401), (169, 151016), (172, 148382), (338, 75508), (344, 74191), (439, 58136), (559, 45656), (676, 37754), (878, 29068), (1118, 22828), (1352, 18877), (1756, 14534), (2236, 11414), (3512, 7267), (4472, 5707)]