80990806

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2447}}^1$

素因数の和:2548

約数の個数: 32

約数和(自身を含む): 139829760

約数和(自身を除く): 58838954

約数列:

[1, 2, 13, 19, 26, 38, 67, 134, 247, 494, 871, 1273, 1742, 2447, 2546, 4894, 16549, 31811, 33098, 46493, 63622, 92986, 163949, 327898, 604409, 1208818, 2131337, 3115031, 4262674, 6230062, 40495403, 80990806]

約数ペア:

[(1, 80990806), (2, 40495403), (13, 6230062), (19, 4262674), (26, 3115031), (38, 2131337), (67, 1208818), (134, 604409), (247, 327898), (494, 163949), (871, 92986), (1273, 63622), (1742, 46493), (2447, 33098), (2546, 31811), (4894, 16549)]