81180494476

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{56219179}}^1$

素因数の和:56219221

約数の個数: 18

約数和(自身を含む): 149936553060

約数和(自身を除く): 68756058584

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 56219179, 112438358, 224876716, 1068164401, 2136328802, 4272657604, 20295123619, 40590247238, 81180494476]

約数ペア:

[(1, 81180494476), (2, 40590247238), (4, 20295123619), (19, 4272657604), (38, 2136328802), (76, 1068164401), (361, 224876716), (722, 112438358), (1444, 56219179)]