18268580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7549}}^1$

素因数の和:7580

約数の個数: 36

約数和(自身を含む): 42174300

約数和(自身を除く): 23905720

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7549, 15098, 30196, 37745, 75490, 83039, 150980, 166078, 332156, 415195, 830390, 913429, 1660780, 1826858, 3653716, 4567145, 9134290, 18268580]

約数ペア:

[(1, 18268580), (2, 9134290), (4, 4567145), (5, 3653716), (10, 1826858), (11, 1660780), (20, 913429), (22, 830390), (44, 415195), (55, 332156), (110, 166078), (121, 150980), (220, 83039), (242, 75490), (484, 37745), (605, 30196), (1210, 15098), (2420, 7549)]