1290320

素因数分解:

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

素因数の和:267

約数の個数: 30

約数和(自身を含む): 3023802

約数和(自身を除く): 1733482

約数列:

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

約数ペア:

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