28712280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 91653120

約数和(自身を除く): 62940840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 101, 103, 115, 120, 138, 184, 202, 206, 230, 276, 303, 309, 345, 404, 412, 460, 505, 515, 552, 606, 618, 690, 808, 824, 920, 1010, 1030, 1212, 1236, 1380, 1515, 1545, 2020, 2060, 2323, 2369, 2424, 2472, 2760, 3030, 3090, 4040, 4120, 4646, 4738, 6060, 6180, 6969, 7107, 9292, 9476, 10403, 11615, 11845, 12120, 12360, 13938, 14214, 18584, 18952, 20806, 23230, 23690, 27876, 28428, 31209, 34845, 35535, 41612, 46460, 47380, 52015, 55752, 56856, 62418, 69690, 71070, 83224, 92920, 94760, 104030, 124836, 139380, 142140, 156045, 208060, 239269, 249672, 278760, 284280, 312090, 416120, 478538, 624180, 717807, 957076, 1196345, 1248360, 1435614, 1914152, 2392690, 2871228, 3589035, 4785380, 5742456, 7178070, 9570760, 14356140, 28712280]

約数ペア:

[(1, 28712280), (2, 14356140), (3, 9570760), (4, 7178070), (5, 5742456), (6, 4785380), (8, 3589035), (10, 2871228), (12, 2392690), (15, 1914152), (20, 1435614), (23, 1248360), (24, 1196345), (30, 957076), (40, 717807), (46, 624180), (60, 478538), (69, 416120), (92, 312090), (101, 284280), (103, 278760), (115, 249672), (120, 239269), (138, 208060), (184, 156045), (202, 142140), (206, 139380), (230, 124836), (276, 104030), (303, 94760), (309, 92920), (345, 83224), (404, 71070), (412, 69690), (460, 62418), (505, 56856), (515, 55752), (552, 52015), (606, 47380), (618, 46460), (690, 41612), (808, 35535), (824, 34845), (920, 31209), (1010, 28428), (1030, 27876), (1212, 23690), (1236, 23230), (1380, 20806), (1515, 18952), (1545, 18584), (2020, 14214), (2060, 13938), (2323, 12360), (2369, 12120), (2424, 11845), (2472, 11615), (2760, 10403), (3030, 9476), (3090, 9292), (4040, 7107), (4120, 6969), (4646, 6180), (4738, 6060)]