25987760

素因数分解:

$2^4\times 5^1\times {\mathrm{324847}}^1$

素因数の和:324860

約数の個数: 20

約数和(自身を含む): 60421728

約数和(自身を除く): 34433968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 324847, 649694, 1299388, 1624235, 2598776, 3248470, 5197552, 6496940, 12993880, 25987760]

約数ペア:

[(1, 25987760), (2, 12993880), (4, 6496940), (5, 5197552), (8, 3248470), (10, 2598776), (16, 1624235), (20, 1299388), (40, 649694), (80, 324847)]