19428860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1879}}^1$

素因数の和:1946

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 26052100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 1879, 2068, 2585, 3758, 5170, 7516, 9395, 10340, 18790, 20669, 37580, 41338, 82676, 88313, 103345, 176626, 206690, 353252, 413380, 441565, 883130, 971443, 1766260, 1942886, 3885772, 4857215, 9714430, 19428860]

約数ペア:

[(1, 19428860), (2, 9714430), (4, 4857215), (5, 3885772), (10, 1942886), (11, 1766260), (20, 971443), (22, 883130), (44, 441565), (47, 413380), (55, 353252), (94, 206690), (110, 176626), (188, 103345), (220, 88313), (235, 82676), (470, 41338), (517, 37580), (940, 20669), (1034, 18790), (1879, 10340), (2068, 9395), (2585, 7516), (3758, 5170)]