121271920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19687}}^1$

素因数の和:19718

約数の個数: 80

約数和(自身を含む): 351548928

約数和(自身を除く): 230277008

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 19687, 39374, 78748, 98435, 137809, 157496, 196870, 216557, 275618, 314992, 393740, 433114, 551236, 689045, 787480, 866228, 1082785, 1102472, 1378090, 1515899, 1574960, 1732456, 2165570, 2204944, 2756180, 3031798, 3464912, 4331140, 5512360, 6063596, 7579495, 8662280, 11024720, 12127192, 15158990, 17324560, 24254384, 30317980, 60635960, 121271920]

約数ペア:

[(1, 121271920), (2, 60635960), (4, 30317980), (5, 24254384), (7, 17324560), (8, 15158990), (10, 12127192), (11, 11024720), (14, 8662280), (16, 7579495), (20, 6063596), (22, 5512360), (28, 4331140), (35, 3464912), (40, 3031798), (44, 2756180), (55, 2204944), (56, 2165570), (70, 1732456), (77, 1574960), (80, 1515899), (88, 1378090), (110, 1102472), (112, 1082785), (140, 866228), (154, 787480), (176, 689045), (220, 551236), (280, 433114), (308, 393740), (385, 314992), (440, 275618), (560, 216557), (616, 196870), (770, 157496), (880, 137809), (1232, 98435), (1540, 78748), (3080, 39374), (6160, 19687)]