20005745

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4243}}^1$

素因数の和:4312

約数の個数: 16

約数和(自身を含む): 25667712

約数和(自身を除く): 5661967

約数列:

[1, 5, 23, 41, 115, 205, 943, 4243, 4715, 21215, 97589, 173963, 487945, 869815, 4001149, 20005745]

約数ペア:

[(1, 20005745), (5, 4001149), (23, 869815), (41, 487945), (115, 173963), (205, 97589), (943, 21215), (4243, 4715)]