20961022280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47638687}}^1$

素因数の和:47638709

約数の個数: 32

約数和(自身を含む): 51449783040

約数和(自身を除く): 30488760760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47638687, 95277374, 190554748, 238193435, 381109496, 476386870, 524025557, 952773740, 1048051114, 1905547480, 2096102228, 2620127785, 4192204456, 5240255570, 10480511140, 20961022280]

約数ペア:

[(1, 20961022280), (2, 10480511140), (4, 5240255570), (5, 4192204456), (8, 2620127785), (10, 2096102228), (11, 1905547480), (20, 1048051114), (22, 952773740), (40, 524025557), (44, 476386870), (55, 381109496), (88, 238193435), (110, 190554748), (220, 95277374), (440, 47638687)]