19418900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{8443}}^1$

素因数の和:8480

約数の個数: 36

約数和(自身を含む): 43976352

約数和(自身を除く): 24557452

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 8443, 16886, 33772, 42215, 84430, 168860, 194189, 211075, 388378, 422150, 776756, 844300, 970945, 1941890, 3883780, 4854725, 9709450, 19418900]

約数ペア:

[(1, 19418900), (2, 9709450), (4, 4854725), (5, 3883780), (10, 1941890), (20, 970945), (23, 844300), (25, 776756), (46, 422150), (50, 388378), (92, 211075), (100, 194189), (115, 168860), (230, 84430), (460, 42215), (575, 33772), (1150, 16886), (2300, 8443)]