81766244

素因数分解:

$2^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{7507}}^1$

素因数の和:7907

約数の個数: 24

約数和(自身を含む): 163974720

約数和(自身を除く): 82208476

約数列:

[1, 2, 4, 7, 14, 28, 389, 778, 1556, 2723, 5446, 7507, 10892, 15014, 30028, 52549, 105098, 210196, 2920223, 5840446, 11680892, 20441561, 40883122, 81766244]

約数ペア:

[(1, 81766244), (2, 40883122), (4, 20441561), (7, 11680892), (14, 5840446), (28, 2920223), (389, 210196), (778, 105098), (1556, 52549), (2723, 30028), (5446, 15014), (7507, 10892)]