639202556

素因数分解:

$2^2\times {\mathrm{179}}^1\times {\mathrm{211}}^1\times {\mathrm{4231}}^1$

素因数の和:4625

約数の個数: 24

約数和(自身を含む): 1130451840

約数和(自身を除く): 491249284

約数列:

[1, 2, 4, 179, 211, 358, 422, 716, 844, 4231, 8462, 16924, 37769, 75538, 151076, 757349, 892741, 1514698, 1785482, 3029396, 3570964, 159800639, 319601278, 639202556]

約数ペア:

[(1, 639202556), (2, 319601278), (4, 159800639), (179, 3570964), (211, 3029396), (358, 1785482), (422, 1514698), (716, 892741), (844, 757349), (4231, 151076), (8462, 75538), (16924, 37769)]