20555560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22343}}^1$

素因数の和:22377

約数の個数: 32

約数和(自身を含む): 48263040

約数和(自身を除く): 27707480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22343, 44686, 89372, 111715, 178744, 223430, 446860, 513889, 893720, 1027778, 2055556, 2569445, 4111112, 5138890, 10277780, 20555560]

約数ペア:

[(1, 20555560), (2, 10277780), (4, 5138890), (5, 4111112), (8, 2569445), (10, 2055556), (20, 1027778), (23, 893720), (40, 513889), (46, 446860), (92, 223430), (115, 178744), (184, 111715), (230, 89372), (460, 44686), (920, 22343)]