20307112

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 26504408

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 83, 119, 136, 166, 238, 257, 332, 476, 514, 581, 664, 952, 1028, 1162, 1411, 1799, 2056, 2324, 2822, 3598, 4369, 4648, 5644, 7196, 8738, 9877, 11288, 14392, 17476, 19754, 21331, 30583, 34952, 39508, 42662, 61166, 79016, 85324, 122332, 149317, 170648, 244664, 298634, 362627, 597268, 725254, 1194536, 1450508, 2538389, 2901016, 5076778, 10153556, 20307112]

約数ペア:

[(1, 20307112), (2, 10153556), (4, 5076778), (7, 2901016), (8, 2538389), (14, 1450508), (17, 1194536), (28, 725254), (34, 597268), (56, 362627), (68, 298634), (83, 244664), (119, 170648), (136, 149317), (166, 122332), (238, 85324), (257, 79016), (332, 61166), (476, 42662), (514, 39508), (581, 34952), (664, 30583), (952, 21331), (1028, 19754), (1162, 17476), (1411, 14392), (1799, 11288), (2056, 9877), (2324, 8738), (2822, 7196), (3598, 5644), (4369, 4648)]