20180871356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{412967}}^1$

素因数の和:413633

約数の個数: 24

約数和(自身を含む): 37233194880

約数和(自身を除く): 17052323524

約数列:

[1, 2, 4, 19, 38, 76, 643, 1286, 2572, 12217, 24434, 48868, 412967, 825934, 1651868, 7846373, 15692746, 31385492, 265537781, 531075562, 1062151124, 5045217839, 10090435678, 20180871356]

約数ペア:

[(1, 20180871356), (2, 10090435678), (4, 5045217839), (19, 1062151124), (38, 531075562), (76, 265537781), (643, 31385492), (1286, 15692746), (2572, 7846373), (12217, 1651868), (24434, 825934), (48868, 412967)]