78816555

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{42719}}^1$

素因数の和:42771

約数の個数: 24

約数和(自身を含む): 139950720

約数和(自身を除く): 61134165

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 42719, 128157, 213595, 384471, 640785, 1751479, 1922355, 5254437, 8757395, 15763311, 26272185, 78816555]

約数ペア:

[(1, 78816555), (3, 26272185), (5, 15763311), (9, 8757395), (15, 5254437), (41, 1922355), (45, 1751479), (123, 640785), (205, 384471), (369, 213595), (615, 128157), (1845, 42719)]