28905884

素因数分解:

$2^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1061}}^1$

素因数の和:1218

約数の個数: 36

約数和(自身を含む): 59323320

約数和(自身を除く): 30417436

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 139, 196, 278, 556, 973, 1061, 1946, 2122, 3892, 4244, 6811, 7427, 13622, 14854, 27244, 29708, 51989, 103978, 147479, 207956, 294958, 589916, 1032353, 2064706, 4129412, 7226471, 14452942, 28905884]

約数ペア:

[(1, 28905884), (2, 14452942), (4, 7226471), (7, 4129412), (14, 2064706), (28, 1032353), (49, 589916), (98, 294958), (139, 207956), (196, 147479), (278, 103978), (556, 51989), (973, 29708), (1061, 27244), (1946, 14854), (2122, 13622), (3892, 7427), (4244, 6811)]