20564656

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5923}}^1$

素因数の和:5969

約数の個数: 40

約数和(自身を含む): 47012864

約数和(自身を除く): 26448208

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5923, 11846, 23692, 41461, 47384, 82922, 94768, 165844, 183613, 331688, 367226, 663376, 734452, 1285291, 1468904, 2570582, 2937808, 5141164, 10282328, 20564656]

約数ペア:

[(1, 20564656), (2, 10282328), (4, 5141164), (7, 2937808), (8, 2570582), (14, 1468904), (16, 1285291), (28, 734452), (31, 663376), (56, 367226), (62, 331688), (112, 183613), (124, 165844), (217, 94768), (248, 82922), (434, 47384), (496, 41461), (868, 23692), (1736, 11846), (3472, 5923)]