28305162979180

素因数分解:

$2^2\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{725401409}}^1$

素因数の和:725403369

約数の個数: 24

約数和(自身を含む): 59471309197440

約数和(自身を除く): 31166146218260

約数列:

[1, 2, 4, 5, 10, 20, 1951, 3902, 7804, 9755, 19510, 39020, 725401409, 1450802818, 2901605636, 3627007045, 7254014090, 14508028180, 1415258148959, 2830516297918, 5661032595836, 7076290744795, 14152581489590, 28305162979180]

約数ペア:

[(1, 28305162979180), (2, 14152581489590), (4, 7076290744795), (5, 5661032595836), (10, 2830516297918), (20, 1415258148959), (1951, 14508028180), (3902, 7254014090), (7804, 3627007045), (9755, 2901605636), (19510, 1450802818), (39020, 725401409)]