8223215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 64

約数和(自身を含む): 13934592

約数和(自身を除く): 5711377

約数列:

[1, 5, 7, 11, 13, 31, 35, 53, 55, 65, 77, 91, 143, 155, 217, 265, 341, 371, 385, 403, 455, 583, 689, 715, 1001, 1085, 1643, 1705, 1855, 2015, 2387, 2821, 2915, 3445, 4081, 4433, 4823, 5005, 7579, 8215, 11501, 11935, 14105, 18073, 20405, 21359, 22165, 24115, 31031, 37895, 53053, 57505, 90365, 106795, 126511, 149513, 155155, 234949, 265265, 632555, 747565, 1174745, 1644643, 8223215]

約数ペア:

[(1, 8223215), (5, 1644643), (7, 1174745), (11, 747565), (13, 632555), (31, 265265), (35, 234949), (53, 155155), (55, 149513), (65, 126511), (77, 106795), (91, 90365), (143, 57505), (155, 53053), (217, 37895), (265, 31031), (341, 24115), (371, 22165), (385, 21359), (403, 20405), (455, 18073), (583, 14105), (689, 11935), (715, 11501), (1001, 8215), (1085, 7579), (1643, 5005), (1705, 4823), (1855, 4433), (2015, 4081), (2387, 3445), (2821, 2915)]