2189780360

素因数分解:

$2^3\times 5^1\times {\mathrm{54744509}}^1$

素因数の和:54744520

約数の個数: 16

約数和(自身を含む): 4927005900

約数和(自身を除く): 2737225540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 54744509, 109489018, 218978036, 273722545, 437956072, 547445090, 1094890180, 2189780360]

約数ペア:

[(1, 2189780360), (2, 1094890180), (4, 547445090), (5, 437956072), (8, 273722545), (10, 218978036), (20, 109489018), (40, 54744509)]