20421036680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2017889}}^1$

素因数の和:2017934

約数の個数: 64

約数和(自身を含む): 52303708800

約数和(自身を除く): 31882672120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 10120, 2017889, 4035778, 8071556, 10089445, 16143112, 20178890, 22196779, 40357780, 44393558, 46411447, 80715560, 88787116, 92822894, 110983895, 177574232, 185645788, 221967790, 232057235, 371291576, 443935580, 464114470, 510525917, 887871160, 928228940, 1021051834, 1856457880, 2042103668, 2552629585, 4084207336, 5105259170, 10210518340, 20421036680]

約数ペア:

[(1, 20421036680), (2, 10210518340), (4, 5105259170), (5, 4084207336), (8, 2552629585), (10, 2042103668), (11, 1856457880), (20, 1021051834), (22, 928228940), (23, 887871160), (40, 510525917), (44, 464114470), (46, 443935580), (55, 371291576), (88, 232057235), (92, 221967790), (110, 185645788), (115, 177574232), (184, 110983895), (220, 92822894), (230, 88787116), (253, 80715560), (440, 46411447), (460, 44393558), (506, 40357780), (920, 22196779), (1012, 20178890), (1265, 16143112), (2024, 10089445), (2530, 8071556), (5060, 4035778), (10120, 2017889)]