78542108

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{67943}}^1$

素因数の和:67981

約数の個数: 18

約数和(自身を含む): 146011656

約数和(自身を除く): 67469548

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 67943, 135886, 271772, 1155031, 2310062, 4620124, 19635527, 39271054, 78542108]

約数ペア:

[(1, 78542108), (2, 39271054), (4, 19635527), (17, 4620124), (34, 2310062), (68, 1155031), (289, 271772), (578, 135886), (1156, 67943)]