664668

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:546

約数の個数: 36

約数和(自身を含む): 1729000

約数和(自身を除く): 1064332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 499, 666, 998, 1332, 1497, 1996, 2994, 4491, 5988, 8982, 17964, 18463, 36926, 55389, 73852, 110778, 166167, 221556, 332334, 664668]

約数ペア:

[(1, 664668), (2, 332334), (3, 221556), (4, 166167), (6, 110778), (9, 73852), (12, 55389), (18, 36926), (36, 18463), (37, 17964), (74, 8982), (111, 5988), (148, 4491), (222, 2994), (333, 1996), (444, 1497), (499, 1332), (666, 998)]