2005694780

素因数分解:

$2^2\times 5^1\times {\mathrm{7621}}^1\times {\mathrm{13159}}^1$

素因数の和:20789

約数の個数: 24

約数和(自身を含む): 4212831840

約数和(自身を除く): 2207137060

約数列:

[1, 2, 4, 5, 10, 20, 7621, 13159, 15242, 26318, 30484, 38105, 52636, 65795, 76210, 131590, 152420, 263180, 100284739, 200569478, 401138956, 501423695, 1002847390, 2005694780]

約数ペア:

[(1, 2005694780), (2, 1002847390), (4, 501423695), (5, 401138956), (10, 200569478), (20, 100284739), (7621, 263180), (13159, 152420), (15242, 131590), (26318, 76210), (30484, 65795), (38105, 52636)]