28120090

素因数分解:

$2^1\times 5^1\times {\mathrm{719}}^1\times {\mathrm{3911}}^1$

素因数の和:4637

約数の個数: 16

約数和(自身を含む): 50699520

約数和(自身を除く): 22579430

約数列:

[1, 2, 5, 10, 719, 1438, 3595, 3911, 7190, 7822, 19555, 39110, 2812009, 5624018, 14060045, 28120090]

約数ペア:

[(1, 28120090), (2, 14060045), (5, 5624018), (10, 2812009), (719, 39110), (1438, 19555), (3595, 7822), (3911, 7190)]