258541520

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{25447}}^1$

素因数の和:25587

約数の個数: 40

約数和(自身を含む): 605865984

約数和(自身を除く): 347324464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 25447, 50894, 101788, 127235, 203576, 254470, 407152, 508940, 1017880, 2035760, 3231769, 6463538, 12927076, 16158845, 25854152, 32317690, 51708304, 64635380, 129270760, 258541520]

約数ペア:

[(1, 258541520), (2, 129270760), (4, 64635380), (5, 51708304), (8, 32317690), (10, 25854152), (16, 16158845), (20, 12927076), (40, 6463538), (80, 3231769), (127, 2035760), (254, 1017880), (508, 508940), (635, 407152), (1016, 254470), (1270, 203576), (2032, 127235), (2540, 101788), (5080, 50894), (10160, 25447)]