221790464

素因数分解:

$2^8\times 7^2\times {\mathrm{17681}}^1$

素因数の和:17711

約数の個数: 54

約数和(自身を含む): 515023614

約数和(自身を除く): 293233150

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1792, 3136, 6272, 12544, 17681, 35362, 70724, 123767, 141448, 247534, 282896, 495068, 565792, 866369, 990136, 1131584, 1732738, 1980272, 2263168, 3465476, 3960544, 4526336, 6930952, 7921088, 13861904, 15842176, 27723808, 31684352, 55447616, 110895232, 221790464]

約数ペア:

[(1, 221790464), (2, 110895232), (4, 55447616), (7, 31684352), (8, 27723808), (14, 15842176), (16, 13861904), (28, 7921088), (32, 6930952), (49, 4526336), (56, 3960544), (64, 3465476), (98, 2263168), (112, 1980272), (128, 1732738), (196, 1131584), (224, 990136), (256, 866369), (392, 565792), (448, 495068), (784, 282896), (896, 247534), (1568, 141448), (1792, 123767), (3136, 70724), (6272, 35362), (12544, 17681)]