81736165

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 119508480

約数和(自身を除く): 37772315

約数列:

[1, 5, 7, 35, 41, 49, 79, 103, 205, 245, 287, 395, 515, 553, 721, 1435, 2009, 2765, 3239, 3605, 3871, 4223, 5047, 8137, 10045, 16195, 19355, 21115, 22673, 25235, 29561, 40685, 56959, 113365, 147805, 158711, 206927, 284795, 333617, 398713, 793555, 1034635, 1668085, 1993565, 2335319, 11676595, 16347233, 81736165]

約数ペア:

[(1, 81736165), (5, 16347233), (7, 11676595), (35, 2335319), (41, 1993565), (49, 1668085), (79, 1034635), (103, 793555), (205, 398713), (245, 333617), (287, 284795), (395, 206927), (515, 158711), (553, 147805), (721, 113365), (1435, 56959), (2009, 40685), (2765, 29561), (3239, 25235), (3605, 22673), (3871, 21115), (4223, 19355), (5047, 16195), (8137, 10045)]