1441240

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 3278880

約数和(自身を除く): 1837640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 263, 274, 526, 548, 685, 1052, 1096, 1315, 1370, 2104, 2630, 2740, 5260, 5480, 10520, 36031, 72062, 144124, 180155, 288248, 360310, 720620, 1441240]

約数ペア:

[(1, 1441240), (2, 720620), (4, 360310), (5, 288248), (8, 180155), (10, 144124), (20, 72062), (40, 36031), (137, 10520), (263, 5480), (274, 5260), (526, 2740), (548, 2630), (685, 2104), (1052, 1370), (1096, 1315)]