20208812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 40539072

約数和(自身を除く): 20330260

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 61, 92, 122, 244, 277, 299, 554, 598, 793, 1108, 1196, 1403, 1586, 2806, 3172, 3601, 5612, 6371, 7202, 12742, 14404, 16897, 18239, 25484, 33794, 36478, 67588, 72956, 82823, 165646, 219661, 331292, 388631, 439322, 777262, 878644, 1554524, 5052203, 10104406, 20208812]

約数ペア:

[(1, 20208812), (2, 10104406), (4, 5052203), (13, 1554524), (23, 878644), (26, 777262), (46, 439322), (52, 388631), (61, 331292), (92, 219661), (122, 165646), (244, 82823), (277, 72956), (299, 67588), (554, 36478), (598, 33794), (793, 25484), (1108, 18239), (1196, 16897), (1403, 14404), (1586, 12742), (2806, 7202), (3172, 6371), (3601, 5612)]