20091568

素因数分解:

$2^4\times 7^4\times {\mathrm{523}}^1$

素因数の和:559

約数の個数: 50

約数和(自身を含む): 45499444

約数和(自身を除く): 25407876

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 523, 686, 784, 1046, 1372, 2092, 2401, 2744, 3661, 4184, 4802, 5488, 7322, 8368, 9604, 14644, 19208, 25627, 29288, 38416, 51254, 58576, 102508, 179389, 205016, 358778, 410032, 717556, 1255723, 1435112, 2511446, 2870224, 5022892, 10045784, 20091568]

約数ペア:

[(1, 20091568), (2, 10045784), (4, 5022892), (7, 2870224), (8, 2511446), (14, 1435112), (16, 1255723), (28, 717556), (49, 410032), (56, 358778), (98, 205016), (112, 179389), (196, 102508), (343, 58576), (392, 51254), (523, 38416), (686, 29288), (784, 25627), (1046, 19208), (1372, 14644), (2092, 9604), (2401, 8368), (2744, 7322), (3661, 5488), (4184, 4802)]