87716120

素因数分解:

$2^3\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{1999}}^1$

素因数の和:3107

約数の個数: 32

約数和(自身を含む): 197640000

約数和(自身を除く): 109923880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1097, 1999, 2194, 3998, 4388, 5485, 7996, 8776, 9995, 10970, 15992, 19990, 21940, 39980, 43880, 79960, 2192903, 4385806, 8771612, 10964515, 17543224, 21929030, 43858060, 87716120]

約数ペア:

[(1, 87716120), (2, 43858060), (4, 21929030), (5, 17543224), (8, 10964515), (10, 8771612), (20, 4385806), (40, 2192903), (1097, 79960), (1999, 43880), (2194, 39980), (3998, 21940), (4388, 19990), (5485, 15992), (7996, 10970), (8776, 9995)]