5161280

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^2$

素因数の和:271

約数の個数: 42

約数和(自身を含む): 12387834

約数和(自身を除く): 7226554

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 8128, 10160, 16129, 20320, 32258, 40640, 64516, 80645, 129032, 161290, 258064, 322580, 516128, 645160, 1032256, 1290320, 2580640, 5161280]

約数ペア:

[(1, 5161280), (2, 2580640), (4, 1290320), (5, 1032256), (8, 645160), (10, 516128), (16, 322580), (20, 258064), (32, 161290), (40, 129032), (64, 80645), (80, 64516), (127, 40640), (160, 32258), (254, 20320), (320, 16129), (508, 10160), (635, 8128), (1016, 5080), (1270, 4064), (2032, 2540)]