81008825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4649}}^1$

素因数の和:4717

約数の個数: 24

約数和(自身を含む): 108977400

約数和(自身を除く): 27968575

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 3485, 4649, 17425, 23245, 79033, 116225, 190609, 395165, 953045, 1975825, 3240353, 4765225, 16201765, 81008825]

約数ペア:

[(1, 81008825), (5, 16201765), (17, 4765225), (25, 3240353), (41, 1975825), (85, 953045), (205, 395165), (425, 190609), (697, 116225), (1025, 79033), (3485, 23245), (4649, 17425)]