78996940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2621}}^1$

素因数の和:2778

約数の個数: 48

約数和(自身を含む): 182365344

約数和(自身を除く): 103368404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 685, 1370, 1507, 2621, 2740, 3014, 5242, 6028, 7535, 10484, 13105, 15070, 26210, 28831, 30140, 52420, 57662, 115324, 144155, 288310, 359077, 576620, 718154, 1436308, 1795385, 3590770, 3949847, 7181540, 7899694, 15799388, 19749235, 39498470, 78996940]

約数ペア:

[(1, 78996940), (2, 39498470), (4, 19749235), (5, 15799388), (10, 7899694), (11, 7181540), (20, 3949847), (22, 3590770), (44, 1795385), (55, 1436308), (110, 718154), (137, 576620), (220, 359077), (274, 288310), (548, 144155), (685, 115324), (1370, 57662), (1507, 52420), (2621, 30140), (2740, 28831), (3014, 26210), (5242, 15070), (6028, 13105), (7535, 10484)]