210400360

素因数分解:

$2^3\times 5^1\times {\mathrm{5260009}}^1$

素因数の和:5260020

約数の個数: 16

約数和(自身を含む): 473400900

約数和(自身を除く): 263000540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5260009, 10520018, 21040036, 26300045, 42080072, 52600090, 105200180, 210400360]

約数ペア:

[(1, 210400360), (2, 105200180), (4, 52600090), (5, 42080072), (8, 26300045), (10, 21040036), (20, 10520018), (40, 5260009)]