81235364

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61729}}^1$

素因数の和:61787

約数の個数: 24

約数和(自身を含む): 165930240

約数和(自身を除く): 84694876

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 61729, 123458, 246916, 432103, 864206, 1728412, 2901263, 5802526, 11605052, 20308841, 40617682, 81235364]

約数ペア:

[(1, 81235364), (2, 40617682), (4, 20308841), (7, 11605052), (14, 5802526), (28, 2901263), (47, 1728412), (94, 864206), (188, 432103), (329, 246916), (658, 123458), (1316, 61729)]