520717401

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3079}}^1$

素因数の和:3170

約数の個数: 48

約数和(自身を含む): 845644800

約数和(自身を除く): 324927399

約数列:

[1, 3, 9, 19, 23, 43, 57, 69, 129, 171, 207, 387, 437, 817, 989, 1311, 2451, 2967, 3079, 3933, 7353, 8901, 9237, 18791, 27711, 56373, 58501, 70817, 132397, 169119, 175503, 212451, 397191, 526509, 637353, 1191573, 1345523, 2515543, 3045131, 4036569, 7546629, 9135393, 12109707, 22639887, 27406179, 57857489, 173572467, 520717401]

約数ペア:

[(1, 520717401), (3, 173572467), (9, 57857489), (19, 27406179), (23, 22639887), (43, 12109707), (57, 9135393), (69, 7546629), (129, 4036569), (171, 3045131), (207, 2515543), (387, 1345523), (437, 1191573), (817, 637353), (989, 526509), (1311, 397191), (2451, 212451), (2967, 175503), (3079, 169119), (3933, 132397), (7353, 70817), (8901, 58501), (9237, 56373), (18791, 27711)]