81206158

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 137114208

約数和(自身を除く): 55908050

約数列:

[1, 2, 11, 22, 41, 82, 197, 394, 451, 457, 902, 914, 2167, 4334, 5027, 8077, 10054, 16154, 18737, 37474, 88847, 90029, 177694, 180058, 206107, 412214, 990319, 1980638, 3691189, 7382378, 40603079, 81206158]

約数ペア:

[(1, 81206158), (2, 40603079), (11, 7382378), (22, 3691189), (41, 1980638), (82, 990319), (197, 412214), (394, 206107), (451, 180058), (457, 177694), (902, 90029), (914, 88847), (2167, 37474), (4334, 18737), (5027, 16154), (8077, 10054)]