28571120

素因数分解:

$2^4\times 5^1\times {\mathrm{357139}}^1$

素因数の和:357152

約数の個数: 20

約数和(自身を含む): 66428040

約数和(自身を除く): 37856920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 357139, 714278, 1428556, 1785695, 2857112, 3571390, 5714224, 7142780, 14285560, 28571120]

約数ペア:

[(1, 28571120), (2, 14285560), (4, 7142780), (5, 5714224), (8, 3571390), (10, 2857112), (16, 1785695), (20, 1428556), (40, 714278), (80, 357139)]