666561490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3119}}^1$

素因数の和:3247

約数の個数: 64

約数和(自身を含む): 1423319040

約数和(自身を除く): 756757550

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 71, 86, 142, 215, 301, 355, 430, 497, 602, 710, 994, 1505, 2485, 3010, 3053, 3119, 4970, 6106, 6238, 15265, 15595, 21371, 21833, 30530, 31190, 42742, 43666, 106855, 109165, 134117, 213710, 218330, 221449, 268234, 442898, 670585, 938819, 1107245, 1341170, 1550143, 1877638, 2214490, 3100286, 4694095, 7750715, 9388190, 9522307, 15501430, 19044614, 47611535, 66656149, 95223070, 133312298, 333280745, 666561490]

約数ペア:

[(1, 666561490), (2, 333280745), (5, 133312298), (7, 95223070), (10, 66656149), (14, 47611535), (35, 19044614), (43, 15501430), (70, 9522307), (71, 9388190), (86, 7750715), (142, 4694095), (215, 3100286), (301, 2214490), (355, 1877638), (430, 1550143), (497, 1341170), (602, 1107245), (710, 938819), (994, 670585), (1505, 442898), (2485, 268234), (3010, 221449), (3053, 218330), (3119, 213710), (4970, 134117), (6106, 109165), (6238, 106855), (15265, 43666), (15595, 42742), (21371, 31190), (21833, 30530)]