20177887964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2143847}}^1$

素因数の和:2144045

約数の個数: 24

約数和(自身を含む): 38237672928

約数和(自身を除く): 18059784964

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2353, 4706, 9412, 2143847, 4287694, 8575388, 27870011, 55740022, 111480044, 388036307, 776072614, 1552145228, 5044471991, 10088943982, 20177887964]

約数ペア:

[(1, 20177887964), (2, 10088943982), (4, 5044471991), (13, 1552145228), (26, 776072614), (52, 388036307), (181, 111480044), (362, 55740022), (724, 27870011), (2353, 8575388), (4706, 4287694), (9412, 2143847)]