18648305

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{761}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 25100280

約数和(自身を除く): 6451975

約数列:

[1, 5, 13, 29, 65, 145, 169, 377, 761, 845, 1885, 3805, 4901, 9893, 22069, 24505, 49465, 110345, 128609, 286897, 643045, 1434485, 3729661, 18648305]

約数ペア:

[(1, 18648305), (5, 3729661), (13, 1434485), (29, 643045), (65, 286897), (145, 128609), (169, 110345), (377, 49465), (761, 24505), (845, 22069), (1885, 9893), (3805, 4901)]