290445740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1117099}}^1$

素因数の和:1117121

約数の個数: 24

約数和(自身を含む): 656854800

約数和(自身を除く): 366409060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1117099, 2234198, 4468396, 5585495, 11170990, 14522287, 22341980, 29044574, 58089148, 72611435, 145222870, 290445740]

約数ペア:

[(1, 290445740), (2, 145222870), (4, 72611435), (5, 58089148), (10, 29044574), (13, 22341980), (20, 14522287), (26, 11170990), (52, 5585495), (65, 4468396), (130, 2234198), (260, 1117099)]