31207760

素因数分解:

$2^4\times 5^1\times {\mathrm{390097}}^1$

素因数の和:390110

約数の個数: 20

約数和(自身を含む): 72558228

約数和(自身を除く): 41350468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 390097, 780194, 1560388, 1950485, 3120776, 3900970, 6241552, 7801940, 15603880, 31207760]

約数ペア:

[(1, 31207760), (2, 15603880), (4, 7801940), (5, 6241552), (8, 3900970), (10, 3120776), (16, 1950485), (20, 1560388), (40, 780194), (80, 390097)]