81980678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2749}}^1$

素因数の和:2832

約数の個数: 32

約数和(自身を含む): 140448000

約数和(自身を除く): 58467322

約数列:

[1, 2, 13, 26, 31, 37, 62, 74, 403, 481, 806, 962, 1147, 2294, 2749, 5498, 14911, 29822, 35737, 71474, 85219, 101713, 170438, 203426, 1107847, 1322269, 2215694, 2644538, 3153103, 6306206, 40990339, 81980678]

約数ペア:

[(1, 81980678), (2, 40990339), (13, 6306206), (26, 3153103), (31, 2644538), (37, 2215694), (62, 1322269), (74, 1107847), (403, 203426), (481, 170438), (806, 101713), (962, 85219), (1147, 71474), (2294, 35737), (2749, 29822), (5498, 14911)]