12899920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 33265728

約数和(自身を除く): 20365808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 107, 110, 137, 176, 214, 220, 274, 428, 440, 535, 548, 685, 856, 880, 1070, 1096, 1177, 1370, 1507, 1712, 2140, 2192, 2354, 2740, 3014, 4280, 4708, 5480, 5885, 6028, 7535, 8560, 9416, 10960, 11770, 12056, 14659, 15070, 18832, 23540, 24112, 29318, 30140, 47080, 58636, 60280, 73295, 94160, 117272, 120560, 146590, 161249, 234544, 293180, 322498, 586360, 644996, 806245, 1172720, 1289992, 1612490, 2579984, 3224980, 6449960, 12899920]

約数ペア:

[(1, 12899920), (2, 6449960), (4, 3224980), (5, 2579984), (8, 1612490), (10, 1289992), (11, 1172720), (16, 806245), (20, 644996), (22, 586360), (40, 322498), (44, 293180), (55, 234544), (80, 161249), (88, 146590), (107, 120560), (110, 117272), (137, 94160), (176, 73295), (214, 60280), (220, 58636), (274, 47080), (428, 30140), (440, 29318), (535, 24112), (548, 23540), (685, 18832), (856, 15070), (880, 14659), (1070, 12056), (1096, 11770), (1177, 10960), (1370, 9416), (1507, 8560), (1712, 7535), (2140, 6028), (2192, 5885), (2354, 5480), (2740, 4708), (3014, 4280)]