820121274

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{9907}}^1$

素因数の和:10001

約数の個数: 80

約数和(自身を含む): 2129189568

約数和(自身を除く): 1309068294

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 73, 81, 126, 146, 162, 189, 219, 378, 438, 511, 567, 657, 1022, 1134, 1314, 1533, 1971, 3066, 3942, 4599, 5913, 9198, 9907, 11826, 13797, 19814, 27594, 29721, 41391, 59442, 69349, 82782, 89163, 138698, 178326, 208047, 267489, 416094, 534978, 624141, 723211, 802467, 1248282, 1446422, 1604934, 1872423, 2169633, 3744846, 4339266, 5062477, 5617269, 6508899, 10124954, 11234538, 13017798, 15187431, 19526697, 30374862, 39053394, 45562293, 58580091, 91124586, 117160182, 136686879, 273373758, 410060637, 820121274]

約数ペア:

[(1, 820121274), (2, 410060637), (3, 273373758), (6, 136686879), (7, 117160182), (9, 91124586), (14, 58580091), (18, 45562293), (21, 39053394), (27, 30374862), (42, 19526697), (54, 15187431), (63, 13017798), (73, 11234538), (81, 10124954), (126, 6508899), (146, 5617269), (162, 5062477), (189, 4339266), (219, 3744846), (378, 2169633), (438, 1872423), (511, 1604934), (567, 1446422), (657, 1248282), (1022, 802467), (1134, 723211), (1314, 624141), (1533, 534978), (1971, 416094), (3066, 267489), (3942, 208047), (4599, 178326), (5913, 138698), (9198, 89163), (9907, 82782), (11826, 69349), (13797, 59442), (19814, 41391), (27594, 29721)]