20125979516

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{706373}}^1$

素因数の和:706813

約数の個数: 24

約数和(自身を含む): 37381312080

約数和(自身を除く): 17255332564

約数列:

[1, 2, 4, 17, 34, 68, 419, 838, 1676, 7123, 14246, 28492, 706373, 1412746, 2825492, 12008341, 24016682, 48033364, 295970287, 591940574, 1183881148, 5031494879, 10062989758, 20125979516]

約数ペア:

[(1, 20125979516), (2, 10062989758), (4, 5031494879), (17, 1183881148), (34, 591940574), (68, 295970287), (419, 48033364), (838, 24016682), (1676, 12008341), (7123, 2825492), (14246, 1412746), (28492, 706373)]