19974745

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{569}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 9574055

約数列:

[1, 5, 7, 17, 35, 59, 85, 119, 295, 413, 569, 595, 1003, 2065, 2845, 3983, 5015, 7021, 9673, 19915, 33571, 35105, 48365, 67711, 167855, 234997, 338555, 570707, 1174985, 2853535, 3994949, 19974745]

約数ペア:

[(1, 19974745), (5, 3994949), (7, 2853535), (17, 1174985), (35, 570707), (59, 338555), (85, 234997), (119, 167855), (295, 67711), (413, 48365), (569, 35105), (595, 33571), (1003, 19915), (2065, 9673), (2845, 7021), (3983, 5015)]