31120240

素因数分解:

$2^4\times 5^1\times {\mathrm{389003}}^1$

素因数の和:389016

約数の個数: 20

約数和(自身を含む): 72354744

約数和(自身を除く): 41234504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389003, 778006, 1556012, 1945015, 3112024, 3890030, 6224048, 7780060, 15560120, 31120240]

約数ペア:

[(1, 31120240), (2, 15560120), (4, 7780060), (5, 6224048), (8, 3890030), (10, 3112024), (16, 1945015), (20, 1556012), (40, 778006), (80, 389003)]