2891360440

素因数分解:

$2^3\times 5^1\times {\mathrm{72284011}}^1$

素因数の和:72284022

約数の個数: 16

約数和(自身を含む): 6505561080

約数和(自身を除く): 3614200640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 72284011, 144568022, 289136044, 361420055, 578272088, 722840110, 1445680220, 2891360440]

約数ペア:

[(1, 2891360440), (2, 1445680220), (4, 722840110), (5, 578272088), (8, 361420055), (10, 289136044), (20, 144568022), (40, 72284011)]