19448900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4523}}^1$

素因数の和:4580

約数の個数: 36

約数和(自身を含む): 43195152

約数和(自身を除く): 23746252

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4523, 9046, 18092, 22615, 45230, 90460, 113075, 194489, 226150, 388978, 452300, 777956, 972445, 1944890, 3889780, 4862225, 9724450, 19448900]

約数ペア:

[(1, 19448900), (2, 9724450), (4, 4862225), (5, 3889780), (10, 1944890), (20, 972445), (25, 777956), (43, 452300), (50, 388978), (86, 226150), (100, 194489), (172, 113075), (215, 90460), (430, 45230), (860, 22615), (1075, 18092), (2150, 9046), (4300, 4523)]