808220180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{400109}}^1$

素因数の和:400219

約数の個数: 24

約数和(自身を含む): 1714071240

約数和(自身を除く): 905851060

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 400109, 800218, 1600436, 2000545, 4001090, 8002180, 40411009, 80822018, 161644036, 202055045, 404110090, 808220180]

約数ペア:

[(1, 808220180), (2, 404110090), (4, 202055045), (5, 161644036), (10, 80822018), (20, 40411009), (101, 8002180), (202, 4001090), (404, 2000545), (505, 1600436), (1010, 800218), (2020, 400109)]