19882120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21611}}^1$

素因数の和:21645

約数の個数: 32

約数和(自身を含む): 46681920

約数和(自身を除く): 26799800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21611, 43222, 86444, 108055, 172888, 216110, 432220, 497053, 864440, 994106, 1988212, 2485265, 3976424, 4970530, 9941060, 19882120]

約数ペア:

[(1, 19882120), (2, 9941060), (4, 4970530), (5, 3976424), (8, 2485265), (10, 1988212), (20, 994106), (23, 864440), (40, 497053), (46, 432220), (92, 216110), (115, 172888), (184, 108055), (230, 86444), (460, 43222), (920, 21611)]