30875845

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 20733755

約数列:

[1, 5, 7, 11, 13, 31, 35, 55, 65, 77, 91, 143, 155, 199, 217, 341, 385, 403, 455, 715, 995, 1001, 1085, 1393, 1705, 2015, 2189, 2387, 2587, 2821, 4433, 5005, 6169, 6965, 10945, 11935, 12935, 14105, 15323, 18109, 22165, 28457, 30845, 31031, 43183, 67859, 76615, 80197, 90545, 142285, 155155, 199199, 215915, 339295, 400985, 475013, 561379, 882167, 995995, 2375065, 2806895, 4410835, 6175169, 30875845]

約数ペア:

[(1, 30875845), (5, 6175169), (7, 4410835), (11, 2806895), (13, 2375065), (31, 995995), (35, 882167), (55, 561379), (65, 475013), (77, 400985), (91, 339295), (143, 215915), (155, 199199), (199, 155155), (217, 142285), (341, 90545), (385, 80197), (403, 76615), (455, 67859), (715, 43183), (995, 31031), (1001, 30845), (1085, 28457), (1393, 22165), (1705, 18109), (2015, 15323), (2189, 14105), (2387, 12935), (2587, 11935), (2821, 10945), (4433, 6965), (5005, 6169)]