638288

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 40

約数和(自身を含む): 1458240

約数和(自身を除く): 819952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 139, 164, 278, 287, 328, 556, 574, 656, 973, 1112, 1148, 1946, 2224, 2296, 3892, 4592, 5699, 7784, 11398, 15568, 22796, 39893, 45592, 79786, 91184, 159572, 319144, 638288]

約数ペア:

[(1, 638288), (2, 319144), (4, 159572), (7, 91184), (8, 79786), (14, 45592), (16, 39893), (28, 22796), (41, 15568), (56, 11398), (82, 7784), (112, 5699), (139, 4592), (164, 3892), (278, 2296), (287, 2224), (328, 1946), (556, 1148), (574, 1112), (656, 973)]