81264505

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2239}}^1$

素因数の和:2329

約数の個数: 32

約数和(自身を含む): 119992320

約数和(自身を除く): 38727815

約数列:

[1, 5, 7, 17, 35, 61, 85, 119, 305, 427, 595, 1037, 2135, 2239, 5185, 7259, 11195, 15673, 36295, 38063, 78365, 136579, 190315, 266441, 682895, 956053, 1332205, 2321843, 4780265, 11609215, 16252901, 81264505]

約数ペア:

[(1, 81264505), (5, 16252901), (7, 11609215), (17, 4780265), (35, 2321843), (61, 1332205), (85, 956053), (119, 682895), (305, 266441), (427, 190315), (595, 136579), (1037, 78365), (2135, 38063), (2239, 36295), (5185, 15673), (7259, 11195)]