217297145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6781}}^1$

素因数の和:6845

約数の個数: 32

約数和(自身を含む): 307631520

約数和(自身を除く): 90334375

約数列:

[1, 5, 13, 17, 29, 65, 85, 145, 221, 377, 493, 1105, 1885, 2465, 6409, 6781, 32045, 33905, 88153, 115277, 196649, 440765, 576385, 983245, 1498601, 2556437, 3343033, 7493005, 12782185, 16715165, 43459429, 217297145]

約数ペア:

[(1, 217297145), (5, 43459429), (13, 16715165), (17, 12782185), (29, 7493005), (65, 3343033), (85, 2556437), (145, 1498601), (221, 983245), (377, 576385), (493, 440765), (1105, 196649), (1885, 115277), (2465, 88153), (6409, 33905), (6781, 32045)]