81555575

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2239}}^1$

素因数の和:2327

約数の個数: 24

約数和(自身を含む): 106659840

約数和(自身を除く): 25104265

約数列:

[1, 5, 25, 31, 47, 155, 235, 775, 1175, 1457, 2239, 7285, 11195, 36425, 55975, 69409, 105233, 347045, 526165, 1735225, 2630825, 3262223, 16311115, 81555575]

約数ペア:

[(1, 81555575), (5, 16311115), (25, 3262223), (31, 2630825), (47, 1735225), (155, 526165), (235, 347045), (775, 105233), (1175, 69409), (1457, 55975), (2239, 36425), (7285, 11195)]