309040720

素因数分解:

$2^4\times 5^1\times {\mathrm{3863009}}^1$

素因数の和:3863022

約数の個数: 20

約数和(自身を含む): 718519860

約数和(自身を除く): 409479140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3863009, 7726018, 15452036, 19315045, 30904072, 38630090, 61808144, 77260180, 154520360, 309040720]

約数ペア:

[(1, 309040720), (2, 154520360), (4, 77260180), (5, 61808144), (8, 38630090), (10, 30904072), (16, 19315045), (20, 15452036), (40, 7726018), (80, 3863009)]