81642256

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{12853}}^1$

素因数の和:13258

約数の個数: 20

約数和(自身を含む): 158592652

約数和(自身を除く): 76950396

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 6352, 12853, 25706, 51412, 102824, 205648, 5102641, 10205282, 20410564, 40821128, 81642256]

約数ペア:

[(1, 81642256), (2, 40821128), (4, 20410564), (8, 10205282), (16, 5102641), (397, 205648), (794, 102824), (1588, 51412), (3176, 25706), (6352, 12853)]