19980022945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3968227}}^1$

素因数の和:3968304

約数の個数: 16

約数和(自身を含む): 25714117440

約数和(自身を除く): 5734094495

約数列:

[1, 5, 19, 53, 95, 265, 1007, 5035, 3968227, 19841135, 75396313, 210316031, 376981565, 1051580155, 3996004589, 19980022945]

約数ペア:

[(1, 19980022945), (5, 3996004589), (19, 1051580155), (53, 376981565), (95, 210316031), (265, 75396313), (1007, 19841135), (5035, 3968227)]