20799130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8221}}^1$

素因数の和:8262

約数の個数: 32

約数和(自身を含む): 42622848

約数和(自身を除く): 21823718

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8221, 16442, 41105, 82210, 90431, 180862, 189083, 378166, 452155, 904310, 945415, 1890830, 2079913, 4159826, 10399565, 20799130]

約数ペア:

[(1, 20799130), (2, 10399565), (5, 4159826), (10, 2079913), (11, 1890830), (22, 945415), (23, 904310), (46, 452155), (55, 378166), (110, 189083), (115, 180862), (230, 90431), (253, 82210), (506, 41105), (1265, 16442), (2530, 8221)]