87691880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^2\times {\mathrm{233}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 200217420

約数和(自身を除く): 112525540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 233, 388, 466, 485, 776, 932, 970, 1165, 1864, 1940, 2330, 3880, 4660, 9320, 9409, 18818, 22601, 37636, 45202, 47045, 75272, 90404, 94090, 113005, 180808, 188180, 226010, 376360, 452020, 904040, 2192297, 4384594, 8769188, 10961485, 17538376, 21922970, 43845940, 87691880]

約数ペア:

[(1, 87691880), (2, 43845940), (4, 21922970), (5, 17538376), (8, 10961485), (10, 8769188), (20, 4384594), (40, 2192297), (97, 904040), (194, 452020), (233, 376360), (388, 226010), (466, 188180), (485, 180808), (776, 113005), (932, 94090), (970, 90404), (1165, 75272), (1864, 47045), (1940, 45202), (2330, 37636), (3880, 22601), (4660, 18818), (9320, 9409)]