80759600

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2118

約数の個数: 60

約数和(自身を含む): 196044000

約数和(自身を除く): 115284400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 1999, 2020, 2525, 3998, 4040, 5050, 7996, 8080, 9995, 10100, 15992, 19990, 20200, 31984, 39980, 40400, 49975, 79960, 99950, 159920, 199900, 201899, 399800, 403798, 799600, 807596, 1009495, 1615192, 2018990, 3230384, 4037980, 5047475, 8075960, 10094950, 16151920, 20189900, 40379800, 80759600]

約数ペア:

[(1, 80759600), (2, 40379800), (4, 20189900), (5, 16151920), (8, 10094950), (10, 8075960), (16, 5047475), (20, 4037980), (25, 3230384), (40, 2018990), (50, 1615192), (80, 1009495), (100, 807596), (101, 799600), (200, 403798), (202, 399800), (400, 201899), (404, 199900), (505, 159920), (808, 99950), (1010, 79960), (1616, 49975), (1999, 40400), (2020, 39980), (2525, 31984), (3998, 20200), (4040, 19990), (5050, 15992), (7996, 10100), (8080, 9995)]