181007140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{2131}}^1$

素因数の和:2308

約数の個数: 48

約数和(自身を含む): 395426304

約数和(自身を除く): 214419164

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 155, 274, 310, 548, 620, 685, 1370, 2131, 2740, 4247, 4262, 8494, 8524, 10655, 16988, 21235, 21310, 42470, 42620, 66061, 84940, 132122, 264244, 291947, 330305, 583894, 660610, 1167788, 1321220, 1459735, 2919470, 5838940, 9050357, 18100714, 36201428, 45251785, 90503570, 181007140]

約数ペア:

[(1, 181007140), (2, 90503570), (4, 45251785), (5, 36201428), (10, 18100714), (20, 9050357), (31, 5838940), (62, 2919470), (124, 1459735), (137, 1321220), (155, 1167788), (274, 660610), (310, 583894), (548, 330305), (620, 291947), (685, 264244), (1370, 132122), (2131, 84940), (2740, 66061), (4247, 42620), (4262, 42470), (8494, 21310), (8524, 21235), (10655, 16988)]