138865160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{495947}}^1$

素因数の和:495965

約数の個数: 32

約数和(自身を含む): 357082560

約数和(自身を除く): 218217400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 495947, 991894, 1983788, 2479735, 3471629, 3967576, 4959470, 6943258, 9918940, 13886516, 17358145, 19837880, 27773032, 34716290, 69432580, 138865160]

約数ペア:

[(1, 138865160), (2, 69432580), (4, 34716290), (5, 27773032), (7, 19837880), (8, 17358145), (10, 13886516), (14, 9918940), (20, 6943258), (28, 4959470), (35, 3967576), (40, 3471629), (56, 2479735), (70, 1983788), (140, 991894), (280, 495947)]