1808080

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 4265352

約数和(自身を除く): 2457272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 233, 388, 466, 485, 776, 932, 970, 1165, 1552, 1864, 1940, 2330, 3728, 3880, 4660, 7760, 9320, 18640, 22601, 45202, 90404, 113005, 180808, 226010, 361616, 452020, 904040, 1808080]

約数ペア:

[(1, 1808080), (2, 904040), (4, 452020), (5, 361616), (8, 226010), (10, 180808), (16, 113005), (20, 90404), (40, 45202), (80, 22601), (97, 18640), (194, 9320), (233, 7760), (388, 4660), (466, 3880), (485, 3728), (776, 2330), (932, 1940), (970, 1864), (1165, 1552)]