138359480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{494141}}^1$

素因数の和:494159

約数の個数: 32

約数和(自身を含む): 355782240

約数和(自身を除く): 217422760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 494141, 988282, 1976564, 2470705, 3458987, 3953128, 4941410, 6917974, 9882820, 13835948, 17294935, 19765640, 27671896, 34589870, 69179740, 138359480]

約数ペア:

[(1, 138359480), (2, 69179740), (4, 34589870), (5, 27671896), (7, 19765640), (8, 17294935), (10, 13835948), (14, 9882820), (20, 6917974), (28, 4941410), (35, 3953128), (40, 3458987), (56, 2470705), (70, 1976564), (140, 988282), (280, 494141)]