904450180

素因数分解:

$2^2\times 5^1\times {\mathrm{45222509}}^1$

素因数の和:45222518

約数の個数: 12

約数和(自身を含む): 1899345420

約数和(自身を除く): 994895240

約数列:

[1, 2, 4, 5, 10, 20, 45222509, 90445018, 180890036, 226112545, 452225090, 904450180]

約数ペア:

[(1, 904450180), (2, 452225090), (4, 226112545), (5, 180890036), (10, 90445018), (20, 45222509)]