64635380

素因数分解:

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

素因数の和:25583

約数の個数: 24

約数和(自身を含む): 136808448

約数和(自身を除く): 72173068

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 25447, 50894, 101788, 127235, 254470, 508940, 3231769, 6463538, 12927076, 16158845, 32317690, 64635380]

約数ペア:

[(1, 64635380), (2, 32317690), (4, 16158845), (5, 12927076), (10, 6463538), (20, 3231769), (127, 508940), (254, 254470), (508, 127235), (635, 101788), (1270, 50894), (2540, 25447)]