20159260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2131}}^1$

素因数の和:2194

約数の個数: 48

約数和(自身を含む): 47279232

約数和(自身を除く): 27119972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2131, 2365, 4262, 4730, 8524, 9460, 10655, 21310, 23441, 42620, 46882, 91633, 93764, 117205, 183266, 234410, 366532, 458165, 468820, 916330, 1007963, 1832660, 2015926, 4031852, 5039815, 10079630, 20159260]

約数ペア:

[(1, 20159260), (2, 10079630), (4, 5039815), (5, 4031852), (10, 2015926), (11, 1832660), (20, 1007963), (22, 916330), (43, 468820), (44, 458165), (55, 366532), (86, 234410), (110, 183266), (172, 117205), (215, 93764), (220, 91633), (430, 46882), (473, 42620), (860, 23441), (946, 21310), (1892, 10655), (2131, 9460), (2365, 8524), (4262, 4730)]