18770675

素因数分解:

$5^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 29760000

約数和(自身を除く): 10989325

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 199, 245, 275, 343, 385, 539, 995, 1225, 1393, 1715, 1925, 2189, 2695, 3773, 4975, 6965, 8575, 9751, 10945, 13475, 15323, 18865, 34825, 48755, 54725, 68257, 76615, 94325, 107261, 243775, 341285, 383075, 536305, 750827, 1706425, 2681525, 3754135, 18770675]

約数ペア:

[(1, 18770675), (5, 3754135), (7, 2681525), (11, 1706425), (25, 750827), (35, 536305), (49, 383075), (55, 341285), (77, 243775), (175, 107261), (199, 94325), (245, 76615), (275, 68257), (343, 54725), (385, 48755), (539, 34825), (995, 18865), (1225, 15323), (1393, 13475), (1715, 10945), (1925, 9751), (2189, 8575), (2695, 6965), (3773, 4975)]