20498464

素因数分解:

$2^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:810

約数の個数: 72

約数和(自身を含む): 49771260

約数和(自身を除く): 29272796

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 68, 98, 112, 119, 136, 196, 224, 238, 272, 392, 476, 544, 769, 784, 833, 952, 1538, 1568, 1666, 1904, 3076, 3332, 3808, 5383, 6152, 6664, 10766, 12304, 13073, 13328, 21532, 24608, 26146, 26656, 37681, 43064, 52292, 75362, 86128, 91511, 104584, 150724, 172256, 183022, 209168, 301448, 366044, 418336, 602896, 640577, 732088, 1205792, 1281154, 1464176, 2562308, 2928352, 5124616, 10249232, 20498464]

約数ペア:

[(1, 20498464), (2, 10249232), (4, 5124616), (7, 2928352), (8, 2562308), (14, 1464176), (16, 1281154), (17, 1205792), (28, 732088), (32, 640577), (34, 602896), (49, 418336), (56, 366044), (68, 301448), (98, 209168), (112, 183022), (119, 172256), (136, 150724), (196, 104584), (224, 91511), (238, 86128), (272, 75362), (392, 52292), (476, 43064), (544, 37681), (769, 26656), (784, 26146), (833, 24608), (952, 21532), (1538, 13328), (1568, 13073), (1666, 12304), (1904, 10766), (3076, 6664), (3332, 6152), (3808, 5383)]