218291260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{90203}}^1$

素因数の和:90234

約数の個数: 36

約数和(自身を含む): 503879544

約数和(自身を除く): 285588284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 90203, 180406, 360812, 451015, 902030, 992233, 1804060, 1984466, 3968932, 4961165, 9922330, 10914563, 19844660, 21829126, 43658252, 54572815, 109145630, 218291260]

約数ペア:

[(1, 218291260), (2, 109145630), (4, 54572815), (5, 43658252), (10, 21829126), (11, 19844660), (20, 10914563), (22, 9922330), (44, 4961165), (55, 3968932), (110, 1984466), (121, 1804060), (220, 992233), (242, 902030), (484, 451015), (605, 360812), (1210, 180406), (2420, 90203)]