639764

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:175

約数の個数: 24

約数和(自身を含む): 1185408

約数和(自身を除く): 545644

約数列:

[1, 2, 4, 41, 47, 82, 83, 94, 164, 166, 188, 332, 1927, 3403, 3854, 3901, 6806, 7708, 7802, 13612, 15604, 159941, 319882, 639764]

約数ペア:

[(1, 639764), (2, 319882), (4, 159941), (41, 15604), (47, 13612), (82, 7802), (83, 7708), (94, 6806), (164, 3901), (166, 3854), (188, 3403), (332, 1927)]