2580640

素因数分解:

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

素因数の和:269

約数の個数: 36

約数和(自身を含む): 6145146

約数和(自身を除く): 3564506

約数列:

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

約数ペア:

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