19203380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1879}}^1$

素因数の和:1968

約数の個数: 48

約数和(自身を含む): 46744320

約数和(自身を除く): 27540940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 1879, 2044, 2555, 3758, 5110, 7516, 9395, 10220, 13153, 18790, 26306, 37580, 52612, 65765, 131530, 137167, 263060, 274334, 548668, 685835, 960169, 1371670, 1920338, 2743340, 3840676, 4800845, 9601690, 19203380]

約数ペア:

[(1, 19203380), (2, 9601690), (4, 4800845), (5, 3840676), (7, 2743340), (10, 1920338), (14, 1371670), (20, 960169), (28, 685835), (35, 548668), (70, 274334), (73, 263060), (140, 137167), (146, 131530), (292, 65765), (365, 52612), (511, 37580), (730, 26306), (1022, 18790), (1460, 13153), (1879, 10220), (2044, 9395), (2555, 7516), (3758, 5110)]