20450864

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 50139648

約数和(自身を除く): 29688784

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 23, 28, 34, 46, 56, 68, 92, 112, 119, 136, 161, 184, 238, 272, 322, 368, 391, 467, 476, 644, 782, 934, 952, 1288, 1564, 1868, 1904, 2576, 2737, 3128, 3269, 3736, 5474, 6256, 6538, 7472, 7939, 10741, 10948, 13076, 15878, 21482, 21896, 26152, 31756, 42964, 43792, 52304, 55573, 63512, 75187, 85928, 111146, 127024, 150374, 171856, 182597, 222292, 300748, 365194, 444584, 601496, 730388, 889168, 1202992, 1278179, 1460776, 2556358, 2921552, 5112716, 10225432, 20450864]

約数ペア:

[(1, 20450864), (2, 10225432), (4, 5112716), (7, 2921552), (8, 2556358), (14, 1460776), (16, 1278179), (17, 1202992), (23, 889168), (28, 730388), (34, 601496), (46, 444584), (56, 365194), (68, 300748), (92, 222292), (112, 182597), (119, 171856), (136, 150374), (161, 127024), (184, 111146), (238, 85928), (272, 75187), (322, 63512), (368, 55573), (391, 52304), (467, 43792), (476, 42964), (644, 31756), (782, 26152), (934, 21896), (952, 21482), (1288, 15878), (1564, 13076), (1868, 10948), (1904, 10741), (2576, 7939), (2737, 7472), (3128, 6538), (3269, 6256), (3736, 5474)]