12800420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{27827}}^1$

素因数の和:27859

約数の個数: 24

約数和(自身を含む): 28050624

約数和(自身を除く): 15250204

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 27827, 55654, 111308, 139135, 278270, 556540, 640021, 1280042, 2560084, 3200105, 6400210, 12800420]

約数ペア:

[(1, 12800420), (2, 6400210), (4, 3200105), (5, 2560084), (10, 1280042), (20, 640021), (23, 556540), (46, 278270), (92, 139135), (115, 111308), (230, 55654), (460, 27827)]