128745680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229903}}^1$

素因数の和:229923

約数の個数: 40

約数和(自身を含む): 342097152

約数和(自身を除く): 213351472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 229903, 459806, 919612, 1149515, 1609321, 1839224, 2299030, 3218642, 3678448, 4598060, 6437284, 8046605, 9196120, 12874568, 16093210, 18392240, 25749136, 32186420, 64372840, 128745680]

約数ペア:

[(1, 128745680), (2, 64372840), (4, 32186420), (5, 25749136), (7, 18392240), (8, 16093210), (10, 12874568), (14, 9196120), (16, 8046605), (20, 6437284), (28, 4598060), (35, 3678448), (40, 3218642), (56, 2299030), (70, 1839224), (80, 1609321), (112, 1149515), (140, 919612), (280, 459806), (560, 229903)]