28254655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{919}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 12549185

約数列:

[1, 5, 11, 13, 43, 55, 65, 143, 215, 473, 559, 715, 919, 2365, 2795, 4595, 6149, 10109, 11947, 30745, 39517, 50545, 59735, 131417, 197585, 434687, 513721, 657085, 2173435, 2568605, 5650931, 28254655]

約数ペア:

[(1, 28254655), (5, 5650931), (11, 2568605), (13, 2173435), (43, 657085), (55, 513721), (65, 434687), (143, 197585), (215, 131417), (473, 59735), (559, 50545), (715, 39517), (919, 30745), (2365, 11947), (2795, 10109), (4595, 6149)]