20454728

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15881}}^1$

素因数の和:15917

約数の個数: 32

約数和(自身を含む): 45740160

約数和(自身を除く): 25285432

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 15881, 31762, 63524, 111167, 127048, 222334, 365263, 444668, 730526, 889336, 1461052, 2556841, 2922104, 5113682, 10227364, 20454728]

約数ペア:

[(1, 20454728), (2, 10227364), (4, 5113682), (7, 2922104), (8, 2556841), (14, 1461052), (23, 889336), (28, 730526), (46, 444668), (56, 365263), (92, 222334), (161, 127048), (184, 111167), (322, 63524), (644, 31762), (1288, 15881)]