20499008

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:339

約数の個数: 56

約数和(自身を含む): 43781472

約数和(自身を除く): 23282464

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 83, 136, 166, 227, 272, 332, 454, 544, 664, 908, 1088, 1328, 1411, 1816, 2656, 2822, 3632, 3859, 5312, 5644, 7264, 7718, 11288, 14528, 15436, 18841, 22576, 30872, 37682, 45152, 61744, 75364, 90304, 123488, 150728, 246976, 301456, 320297, 602912, 640594, 1205824, 1281188, 2562376, 5124752, 10249504, 20499008]

約数ペア:

[(1, 20499008), (2, 10249504), (4, 5124752), (8, 2562376), (16, 1281188), (17, 1205824), (32, 640594), (34, 602912), (64, 320297), (68, 301456), (83, 246976), (136, 150728), (166, 123488), (227, 90304), (272, 75364), (332, 61744), (454, 45152), (544, 37682), (664, 30872), (908, 22576), (1088, 18841), (1328, 15436), (1411, 14528), (1816, 11288), (2656, 7718), (2822, 7264), (3632, 5644), (3859, 5312)]