20455312

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16183}}^1$

素因数の和:16270

約数の個数: 20

約数和(自身を含む): 40136320

約数和(自身を除く): 19681008

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16183, 32366, 64732, 129464, 258928, 1278457, 2556914, 5113828, 10227656, 20455312]

約数ペア:

[(1, 20455312), (2, 10227656), (4, 5113828), (8, 2556914), (16, 1278457), (79, 258928), (158, 129464), (316, 64732), (632, 32366), (1264, 16183)]