20388730

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8123}}^1$

素因数の和:8381

約数の個数: 16

約数和(自身を含む): 36850464

約数和(自身を除く): 16461734

約数列:

[1, 2, 5, 10, 251, 502, 1255, 2510, 8123, 16246, 40615, 81230, 2038873, 4077746, 10194365, 20388730]

約数ペア:

[(1, 20388730), (2, 10194365), (5, 4077746), (10, 2038873), (251, 81230), (502, 40615), (1255, 16246), (2510, 8123)]