80262820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2663}}^1$

素因数の和:2820

約数の個数: 48

約数和(自身を含む): 185286528

約数和(自身を除く): 105023708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 685, 1370, 1507, 2663, 2740, 3014, 5326, 6028, 7535, 10652, 13315, 15070, 26630, 29293, 30140, 53260, 58586, 117172, 146465, 292930, 364831, 585860, 729662, 1459324, 1824155, 3648310, 4013141, 7296620, 8026282, 16052564, 20065705, 40131410, 80262820]

約数ペア:

[(1, 80262820), (2, 40131410), (4, 20065705), (5, 16052564), (10, 8026282), (11, 7296620), (20, 4013141), (22, 3648310), (44, 1824155), (55, 1459324), (110, 729662), (137, 585860), (220, 364831), (274, 292930), (548, 146465), (685, 117172), (1370, 58586), (1507, 53260), (2663, 30140), (2740, 29293), (3014, 26630), (5326, 15070), (6028, 13315), (7535, 10652)]