20144992

素因数分解:

$2^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:803

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25577888

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 139, 224, 278, 556, 647, 973, 1112, 1294, 1946, 2224, 2588, 3892, 4448, 4529, 5176, 7784, 9058, 10352, 15568, 18116, 20704, 31136, 36232, 72464, 89933, 144928, 179866, 359732, 629531, 719464, 1259062, 1438928, 2518124, 2877856, 5036248, 10072496, 20144992]

約数ペア:

[(1, 20144992), (2, 10072496), (4, 5036248), (7, 2877856), (8, 2518124), (14, 1438928), (16, 1259062), (28, 719464), (32, 629531), (56, 359732), (112, 179866), (139, 144928), (224, 89933), (278, 72464), (556, 36232), (647, 31136), (973, 20704), (1112, 18116), (1294, 15568), (1946, 10352), (2224, 9058), (2588, 7784), (3892, 5176), (4448, 4529)]