20293168

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 27203792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 59, 74, 83, 112, 118, 148, 166, 236, 259, 296, 332, 413, 472, 518, 581, 592, 664, 826, 944, 1036, 1162, 1328, 1652, 2072, 2183, 2324, 3071, 3304, 4144, 4366, 4648, 4897, 6142, 6608, 8732, 9296, 9794, 12284, 15281, 17464, 19588, 21497, 24568, 30562, 34279, 34928, 39176, 42994, 49136, 61124, 68558, 78352, 85988, 122248, 137116, 171976, 181189, 244496, 274232, 343952, 362378, 548464, 724756, 1268323, 1449512, 2536646, 2899024, 5073292, 10146584, 20293168]

約数ペア:

[(1, 20293168), (2, 10146584), (4, 5073292), (7, 2899024), (8, 2536646), (14, 1449512), (16, 1268323), (28, 724756), (37, 548464), (56, 362378), (59, 343952), (74, 274232), (83, 244496), (112, 181189), (118, 171976), (148, 137116), (166, 122248), (236, 85988), (259, 78352), (296, 68558), (332, 61124), (413, 49136), (472, 42994), (518, 39176), (581, 34928), (592, 34279), (664, 30562), (826, 24568), (944, 21497), (1036, 19588), (1162, 17464), (1328, 15281), (1652, 12284), (2072, 9794), (2183, 9296), (2324, 8732), (3071, 6608), (3304, 6142), (4144, 4897), (4366, 4648)]