20667808

素因数分解:

$2^5\times 7^4\times {\mathrm{269}}^1$

素因数の和:307

約数の個数: 60

約数和(自身を含む): 47645010

約数和(自身を除く): 26977202

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 269, 343, 392, 538, 686, 784, 1076, 1372, 1568, 1883, 2152, 2401, 2744, 3766, 4304, 4802, 5488, 7532, 8608, 9604, 10976, 13181, 15064, 19208, 26362, 30128, 38416, 52724, 60256, 76832, 92267, 105448, 184534, 210896, 369068, 421792, 645869, 738136, 1291738, 1476272, 2583476, 2952544, 5166952, 10333904, 20667808]

約数ペア:

[(1, 20667808), (2, 10333904), (4, 5166952), (7, 2952544), (8, 2583476), (14, 1476272), (16, 1291738), (28, 738136), (32, 645869), (49, 421792), (56, 369068), (98, 210896), (112, 184534), (196, 105448), (224, 92267), (269, 76832), (343, 60256), (392, 52724), (538, 38416), (686, 30128), (784, 26362), (1076, 19208), (1372, 15064), (1568, 13181), (1883, 10976), (2152, 9604), (2401, 8608), (2744, 7532), (3766, 5488), (4304, 4802)]