1979897375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{19387}}^1$

素因数の和:19464

約数の個数: 32

約数和(自身を含む): 2661584640

約数和(自身を除く): 681687265

約数列:

[1, 5, 19, 25, 43, 95, 125, 215, 475, 817, 1075, 2375, 4085, 5375, 19387, 20425, 96935, 102125, 368353, 484675, 833641, 1841765, 2423375, 4168205, 9208825, 15839179, 20841025, 46044125, 79195895, 104205125, 395979475, 1979897375]

約数ペア:

[(1, 1979897375), (5, 395979475), (19, 104205125), (25, 79195895), (43, 46044125), (95, 20841025), (125, 15839179), (215, 9208825), (475, 4168205), (817, 2423375), (1075, 1841765), (2375, 833641), (4085, 484675), (5375, 368353), (19387, 102125), (20425, 96935)]