204518405

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 310166640

約数和(自身を除く): 105648235

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 157, 245, 409, 455, 637, 785, 1099, 2041, 2045, 2863, 3185, 5317, 5495, 7693, 10205, 14287, 14315, 20041, 26585, 37219, 38465, 64213, 71435, 100009, 100205, 186095, 260533, 321065, 449491, 500045, 834769, 1302665, 2247455, 3146437, 4173845, 5843383, 15732185, 29216915, 40903681, 204518405]

約数ペア:

[(1, 204518405), (5, 40903681), (7, 29216915), (13, 15732185), (35, 5843383), (49, 4173845), (65, 3146437), (91, 2247455), (157, 1302665), (245, 834769), (409, 500045), (455, 449491), (637, 321065), (785, 260533), (1099, 186095), (2041, 100205), (2045, 100009), (2863, 71435), (3185, 64213), (5317, 38465), (5495, 37219), (7693, 26585), (10205, 20041), (14287, 14315)]