20425288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8539}}^1$

素因数の和:8581

約数の個数: 32

約数和(自身を含む): 43041600

約数和(自身を除く): 22616312

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 184, 299, 598, 1196, 2392, 8539, 17078, 34156, 68312, 111007, 196397, 222014, 392794, 444028, 785588, 888056, 1571176, 2553161, 5106322, 10212644, 20425288]

約数ペア:

[(1, 20425288), (2, 10212644), (4, 5106322), (8, 2553161), (13, 1571176), (23, 888056), (26, 785588), (46, 444028), (52, 392794), (92, 222014), (104, 196397), (184, 111007), (299, 68312), (598, 34156), (1196, 17078), (2392, 8539)]