1315240

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 2993760

約数和(自身を除く): 1678520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 251, 262, 502, 524, 655, 1004, 1048, 1255, 1310, 2008, 2510, 2620, 5020, 5240, 10040, 32881, 65762, 131524, 164405, 263048, 328810, 657620, 1315240]

約数ペア:

[(1, 1315240), (2, 657620), (4, 328810), (5, 263048), (8, 164405), (10, 131524), (20, 65762), (40, 32881), (131, 10040), (251, 5240), (262, 5020), (502, 2620), (524, 2510), (655, 2008), (1004, 1310), (1048, 1255)]