80986180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2687}}^1$

素因数の和:2844

約数の個数: 48

約数和(自身を含む): 186955776

約数和(自身を除く): 105969596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 685, 1370, 1507, 2687, 2740, 3014, 5374, 6028, 7535, 10748, 13435, 15070, 26870, 29557, 30140, 53740, 59114, 118228, 147785, 295570, 368119, 591140, 736238, 1472476, 1840595, 3681190, 4049309, 7362380, 8098618, 16197236, 20246545, 40493090, 80986180]

約数ペア:

[(1, 80986180), (2, 40493090), (4, 20246545), (5, 16197236), (10, 8098618), (11, 7362380), (20, 4049309), (22, 3681190), (44, 1840595), (55, 1472476), (110, 736238), (137, 591140), (220, 368119), (274, 295570), (548, 147785), (685, 118228), (1370, 59114), (1507, 53740), (2687, 30140), (2740, 29557), (3014, 26870), (5374, 15070), (6028, 13435), (7535, 10748)]