688202487

素因数分解:

$3^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{97}}^2$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 1218112896

約数和(自身を除く): 529910409

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 97, 129, 189, 243, 291, 301, 387, 567, 679, 873, 903, 1161, 1701, 2037, 2619, 2709, 3483, 4171, 6111, 7857, 8127, 9409, 10449, 12513, 18333, 23571, 24381, 28227, 29197, 37539, 54999, 65863, 73143, 84681, 87591, 112617, 164997, 197589, 254043, 262773, 337851, 404587, 592767, 762129, 788319, 1013553, 1213761, 1778301, 2286387, 2364957, 2832109, 3641283, 5334903, 7094871, 8496327, 10923849, 16004709, 25488981, 32771547, 76466943, 98314641, 229400829, 688202487]

約数ペア:

[(1, 688202487), (3, 229400829), (7, 98314641), (9, 76466943), (21, 32771547), (27, 25488981), (43, 16004709), (63, 10923849), (81, 8496327), (97, 7094871), (129, 5334903), (189, 3641283), (243, 2832109), (291, 2364957), (301, 2286387), (387, 1778301), (567, 1213761), (679, 1013553), (873, 788319), (903, 762129), (1161, 592767), (1701, 404587), (2037, 337851), (2619, 262773), (2709, 254043), (3483, 197589), (4171, 164997), (6111, 112617), (7857, 87591), (8127, 84681), (9409, 73143), (10449, 65863), (12513, 54999), (18333, 37539), (23571, 29197), (24381, 28227)]