128643380

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{50647}}^1$

素因数の和:50783

約数の個数: 24

約数和(自身を含む): 272283648

約数和(自身を除く): 143640268

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 50647, 101294, 202588, 253235, 506470, 1012940, 6432169, 12864338, 25728676, 32160845, 64321690, 128643380]

約数ペア:

[(1, 128643380), (2, 64321690), (4, 32160845), (5, 25728676), (10, 12864338), (20, 6432169), (127, 1012940), (254, 506470), (508, 253235), (635, 202588), (1270, 101294), (2540, 50647)]