261937648

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{123091}}^1$

素因数の和:123125

約数の個数: 40

約数和(自身を含む): 610536320

約数和(自身を除く): 348598672

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 123091, 246182, 492364, 861637, 984728, 1723274, 1969456, 2338729, 3446548, 4677458, 6893096, 9354916, 13786192, 16371103, 18709832, 32742206, 37419664, 65484412, 130968824, 261937648]

約数ペア:

[(1, 261937648), (2, 130968824), (4, 65484412), (7, 37419664), (8, 32742206), (14, 18709832), (16, 16371103), (19, 13786192), (28, 9354916), (38, 6893096), (56, 4677458), (76, 3446548), (112, 2338729), (133, 1969456), (152, 1723274), (266, 984728), (304, 861637), (532, 492364), (1064, 246182), (2128, 123091)]