1980745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1032

約数の個数: 16

約数和(自身を含む): 2644992

約数和(自身を除く): 664247

約数列:

[1, 5, 13, 31, 65, 155, 403, 983, 2015, 4915, 12779, 30473, 63895, 152365, 396149, 1980745]

約数ペア:

[(1, 1980745), (5, 396149), (13, 152365), (31, 63895), (65, 30473), (155, 12779), (403, 4915), (983, 2015)]