648026390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{4217}}^1$

素因数の和:4373

約数の個数: 48

約数和(自身を含む): 1292530176

約数和(自身を除く): 644503786

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 127, 242, 254, 605, 635, 1210, 1270, 1397, 2794, 4217, 6985, 8434, 13970, 15367, 21085, 30734, 42170, 46387, 76835, 92774, 153670, 231935, 463870, 510257, 535559, 1020514, 1071118, 2551285, 2677795, 5102570, 5355590, 5891149, 11782298, 29455745, 58911490, 64802639, 129605278, 324013195, 648026390]

約数ペア:

[(1, 648026390), (2, 324013195), (5, 129605278), (10, 64802639), (11, 58911490), (22, 29455745), (55, 11782298), (110, 5891149), (121, 5355590), (127, 5102570), (242, 2677795), (254, 2551285), (605, 1071118), (635, 1020514), (1210, 535559), (1270, 510257), (1397, 463870), (2794, 231935), (4217, 153670), (6985, 92774), (8434, 76835), (13970, 46387), (15367, 42170), (21085, 30734)]