81977608

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{238307}}^1$

素因数の和:238356

約数の個数: 16

約数和(自身を含む): 157283280

約数和(自身を除く): 75305672

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 238307, 476614, 953228, 1906456, 10247201, 20494402, 40988804, 81977608]

約数ペア:

[(1, 81977608), (2, 40988804), (4, 20494402), (8, 10247201), (43, 1906456), (86, 953228), (172, 476614), (344, 238307)]