271991005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1931}}^1$

素因数の和:2157

約数の個数: 32

約数和(自身を含む): 385596288

約数和(自身を除く): 113605283

約数列:

[1, 5, 11, 13, 55, 65, 143, 197, 715, 985, 1931, 2167, 2561, 9655, 10835, 12805, 21241, 25103, 28171, 106205, 125515, 140855, 276133, 380407, 1380665, 1902035, 4184477, 4945291, 20922385, 24726455, 54398201, 271991005]

約数ペア:

[(1, 271991005), (5, 54398201), (11, 24726455), (13, 20922385), (55, 4945291), (65, 4184477), (143, 1902035), (197, 1380665), (715, 380407), (985, 276133), (1931, 140855), (2167, 125515), (2561, 106205), (9655, 28171), (10835, 25103), (12805, 21241)]