81931014

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2047

約数の個数: 80

約数和(自身を含む): 209088000

約数和(自身を除く): 127156986

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 27, 33, 46, 54, 66, 69, 81, 99, 138, 162, 198, 207, 253, 297, 414, 506, 594, 621, 759, 891, 1242, 1518, 1782, 1863, 1999, 2277, 3726, 3998, 4554, 5997, 6831, 11994, 13662, 17991, 20493, 21989, 35982, 40986, 43978, 45977, 53973, 65967, 91954, 107946, 131934, 137931, 161919, 197901, 275862, 323838, 395802, 413793, 505747, 593703, 827586, 1011494, 1187406, 1241379, 1517241, 1781109, 2482758, 3034482, 3562218, 3724137, 4551723, 7448274, 9103446, 13655169, 27310338, 40965507, 81931014]

約数ペア:

[(1, 81931014), (2, 40965507), (3, 27310338), (6, 13655169), (9, 9103446), (11, 7448274), (18, 4551723), (22, 3724137), (23, 3562218), (27, 3034482), (33, 2482758), (46, 1781109), (54, 1517241), (66, 1241379), (69, 1187406), (81, 1011494), (99, 827586), (138, 593703), (162, 505747), (198, 413793), (207, 395802), (253, 323838), (297, 275862), (414, 197901), (506, 161919), (594, 137931), (621, 131934), (759, 107946), (891, 91954), (1242, 65967), (1518, 53973), (1782, 45977), (1863, 43978), (1999, 40986), (2277, 35982), (3726, 21989), (3998, 20493), (4554, 17991), (5997, 13662), (6831, 11994)]