289421216

素因数分解:

$2^5\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1997}}^1$

素因数の和:2661

約数の個数: 48

約数和(自身を含む): 652530816

約数和(自身を除く): 363109600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 647, 1294, 1997, 2588, 3994, 4529, 5176, 7988, 9058, 10352, 13979, 15976, 18116, 20704, 27958, 31952, 36232, 55916, 63904, 72464, 111832, 144928, 223664, 447328, 1292059, 2584118, 5168236, 9044413, 10336472, 18088826, 20672944, 36177652, 41345888, 72355304, 144710608, 289421216]

約数ペア:

[(1, 289421216), (2, 144710608), (4, 72355304), (7, 41345888), (8, 36177652), (14, 20672944), (16, 18088826), (28, 10336472), (32, 9044413), (56, 5168236), (112, 2584118), (224, 1292059), (647, 447328), (1294, 223664), (1997, 144928), (2588, 111832), (3994, 72464), (4529, 63904), (5176, 55916), (7988, 36232), (9058, 31952), (10352, 27958), (13979, 20704), (15976, 18116)]