81778346

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 136234560

約数和(自身を除く): 54456214

約数列:

[1, 2, 13, 26, 43, 86, 193, 379, 386, 559, 758, 1118, 2509, 4927, 5018, 8299, 9854, 16297, 16598, 32594, 73147, 107887, 146294, 211861, 215774, 423722, 950911, 1901822, 3145321, 6290642, 40889173, 81778346]

約数ペア:

[(1, 81778346), (2, 40889173), (13, 6290642), (26, 3145321), (43, 1901822), (86, 950911), (193, 423722), (379, 215774), (386, 211861), (559, 146294), (758, 107887), (1118, 73147), (2509, 32594), (4927, 16598), (5018, 16297), (8299, 9854)]