219191245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1549}}^1$

素因数の和:1885

約数の個数: 32

約数和(自身を含む): 324979200

約数和(自身を除く): 105787955

約数列:

[1, 5, 7, 13, 35, 65, 91, 311, 455, 1549, 1555, 2177, 4043, 7745, 10843, 10885, 20137, 20215, 28301, 54215, 100685, 140959, 141505, 481739, 704795, 2408695, 3372173, 6262607, 16860865, 31313035, 43838249, 219191245]

約数ペア:

[(1, 219191245), (5, 43838249), (7, 31313035), (13, 16860865), (35, 6262607), (65, 3372173), (91, 2408695), (311, 704795), (455, 481739), (1549, 141505), (1555, 140959), (2177, 100685), (4043, 54215), (7745, 28301), (10843, 20215), (10885, 20137)]