20318944

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{911}}^1$

素因数の和:979

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 23117792

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 68, 82, 136, 164, 272, 328, 544, 656, 697, 911, 1312, 1394, 1822, 2788, 3644, 5576, 7288, 11152, 14576, 15487, 22304, 29152, 30974, 37351, 61948, 74702, 123896, 149404, 247792, 298808, 495584, 597616, 634967, 1195232, 1269934, 2539868, 5079736, 10159472, 20318944]

約数ペア:

[(1, 20318944), (2, 10159472), (4, 5079736), (8, 2539868), (16, 1269934), (17, 1195232), (32, 634967), (34, 597616), (41, 495584), (68, 298808), (82, 247792), (136, 149404), (164, 123896), (272, 74702), (328, 61948), (544, 37351), (656, 30974), (697, 29152), (911, 22304), (1312, 15487), (1394, 14576), (1822, 11152), (2788, 7288), (3644, 5576)]