19985530

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{359}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 18116870

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 293, 359, 586, 718, 1465, 1795, 2930, 3590, 5567, 6821, 11134, 13642, 27835, 34105, 55670, 68210, 105187, 210374, 525935, 1051870, 1998553, 3997106, 9992765, 19985530]

約数ペア:

[(1, 19985530), (2, 9992765), (5, 3997106), (10, 1998553), (19, 1051870), (38, 525935), (95, 210374), (190, 105187), (293, 68210), (359, 55670), (586, 34105), (718, 27835), (1465, 13642), (1795, 11134), (2930, 6821), (3590, 5567)]