2021145520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1329701}}^1$

素因数の和:1329733

約数の個数: 40

約数和(自身を含む): 4946491440

約数和(自身を除く): 2925345920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1329701, 2659402, 5318804, 6648505, 10637608, 13297010, 21275216, 25264319, 26594020, 50528638, 53188040, 101057276, 106376080, 126321595, 202114552, 252643190, 404229104, 505286380, 1010572760, 2021145520]

約数ペア:

[(1, 2021145520), (2, 1010572760), (4, 505286380), (5, 404229104), (8, 252643190), (10, 202114552), (16, 126321595), (19, 106376080), (20, 101057276), (38, 53188040), (40, 50528638), (76, 26594020), (80, 25264319), (95, 21275216), (152, 13297010), (190, 10637608), (304, 6648505), (380, 5318804), (760, 2659402), (1520, 1329701)]