19554280

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1129}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 44137800

約数和(自身を除く): 24583520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1129, 1732, 2165, 2258, 3464, 4330, 4516, 5645, 8660, 9032, 11290, 17320, 22580, 45160, 488857, 977714, 1955428, 2444285, 3910856, 4888570, 9777140, 19554280]

約数ペア:

[(1, 19554280), (2, 9777140), (4, 4888570), (5, 3910856), (8, 2444285), (10, 1955428), (20, 977714), (40, 488857), (433, 45160), (866, 22580), (1129, 17320), (1732, 11290), (2165, 9032), (2258, 8660), (3464, 5645), (4330, 4516)]