201821467780

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1867}}^1\times {\mathrm{21031}}^1$

素因数の和:23164

約数の個数: 48

約数和(自身を含む): 425722340736

約数和(自身を除く): 223900872956

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 1867, 2570, 3734, 5140, 7468, 9335, 18670, 21031, 37340, 42062, 84124, 105155, 210310, 420620, 479819, 959638, 1919276, 2399095, 4798190, 5404967, 9596380, 10809934, 21619868, 27024835, 39264877, 54049670, 78529754, 108099340, 157059508, 196324385, 392648770, 785297540, 10091073389, 20182146778, 40364293556, 50455366945, 100910733890, 201821467780]

約数ペア:

[(1, 201821467780), (2, 100910733890), (4, 50455366945), (5, 40364293556), (10, 20182146778), (20, 10091073389), (257, 785297540), (514, 392648770), (1028, 196324385), (1285, 157059508), (1867, 108099340), (2570, 78529754), (3734, 54049670), (5140, 39264877), (7468, 27024835), (9335, 21619868), (18670, 10809934), (21031, 9596380), (37340, 5404967), (42062, 4798190), (84124, 2399095), (105155, 1919276), (210310, 959638), (420620, 479819)]