1281431536

素因数分解:

$2^4\times 7^3\times {\mathrm{11}}^1\times {\mathrm{21227}}^1$

素因数の和:21267

約数の個数: 80

約数和(自身を含む): 3158726400

約数和(自身を除く): 1877294864

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 308, 343, 392, 539, 616, 686, 784, 1078, 1232, 1372, 2156, 2744, 3773, 4312, 5488, 7546, 8624, 15092, 21227, 30184, 42454, 60368, 84908, 148589, 169816, 233497, 297178, 339632, 466994, 594356, 933988, 1040123, 1188712, 1634479, 1867976, 2080246, 2377424, 3268958, 3735952, 4160492, 6537916, 7280861, 8320984, 11441353, 13075832, 14561722, 16641968, 22882706, 26151664, 29123444, 45765412, 58246888, 80089471, 91530824, 116493776, 160178942, 183061648, 320357884, 640715768, 1281431536]

約数ペア:

[(1, 1281431536), (2, 640715768), (4, 320357884), (7, 183061648), (8, 160178942), (11, 116493776), (14, 91530824), (16, 80089471), (22, 58246888), (28, 45765412), (44, 29123444), (49, 26151664), (56, 22882706), (77, 16641968), (88, 14561722), (98, 13075832), (112, 11441353), (154, 8320984), (176, 7280861), (196, 6537916), (308, 4160492), (343, 3735952), (392, 3268958), (539, 2377424), (616, 2080246), (686, 1867976), (784, 1634479), (1078, 1188712), (1232, 1040123), (1372, 933988), (2156, 594356), (2744, 466994), (3773, 339632), (4312, 297178), (5488, 233497), (7546, 169816), (8624, 148589), (15092, 84908), (21227, 60368), (30184, 42454)]