81147610

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197921}}^1$

素因数の和:197969

約数の個数: 16

約数和(自身を含む): 149629032

約数和(自身を除く): 68481422

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 197921, 395842, 989605, 1979210, 8114761, 16229522, 40573805, 81147610]

約数ペア:

[(1, 81147610), (2, 40573805), (5, 16229522), (10, 8114761), (41, 1979210), (82, 989605), (205, 395842), (410, 197921)]