20459615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 28207872

約数和(自身を除く): 7748257

約数列:

[1, 5, 11, 41, 43, 55, 205, 211, 215, 451, 473, 1055, 1763, 2255, 2321, 2365, 8651, 8815, 9073, 11605, 19393, 43255, 45365, 95161, 96965, 99803, 371993, 475805, 499015, 1859965, 4091923, 20459615]

約数ペア:

[(1, 20459615), (5, 4091923), (11, 1859965), (41, 499015), (43, 475805), (55, 371993), (205, 99803), (211, 96965), (215, 95161), (451, 45365), (473, 43255), (1055, 19393), (1763, 11605), (2255, 9073), (2321, 8815), (2365, 8651)]