247605215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{11171}}^1$

素因数の和:11231

約数の個数: 32

約数和(自身を含む): 360364032

約数和(自身を除く): 112758817

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 715, 1705, 2015, 4433, 11171, 22165, 55855, 122881, 145223, 346301, 614405, 726115, 1597453, 1731505, 3809311, 4501913, 7987265, 19046555, 22509565, 49521043, 247605215]

約数ペア:

[(1, 247605215), (5, 49521043), (11, 22509565), (13, 19046555), (31, 7987265), (55, 4501913), (65, 3809311), (143, 1731505), (155, 1597453), (341, 726115), (403, 614405), (715, 346301), (1705, 145223), (2015, 122881), (4433, 55855), (11171, 22165)]