854796140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{90359}}^1$

素因数の和:90422

約数の個数: 48

約数和(自身を含む): 2003823360

約数和(自身を除く): 1149027220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 90359, 180718, 361436, 451795, 903590, 993949, 1807180, 1987898, 3885437, 3975796, 4969745, 7770874, 9939490, 15541748, 19427185, 19878980, 38854370, 42739807, 77708740, 85479614, 170959228, 213699035, 427398070, 854796140]

約数ペア:

[(1, 854796140), (2, 427398070), (4, 213699035), (5, 170959228), (10, 85479614), (11, 77708740), (20, 42739807), (22, 38854370), (43, 19878980), (44, 19427185), (55, 15541748), (86, 9939490), (110, 7770874), (172, 4969745), (215, 3975796), (220, 3885437), (430, 1987898), (473, 1807180), (860, 993949), (946, 903590), (1892, 451795), (2365, 361436), (4730, 180718), (9460, 90359)]