18486820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4943}}^1$

素因数の和:4980

約数の個数: 48

約数和(自身を含む): 44851968

約数和(自身を除く): 26365148

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 4943, 9886, 19772, 24715, 49430, 54373, 84031, 98860, 108746, 168062, 217492, 271865, 336124, 420155, 543730, 840310, 924341, 1087460, 1680620, 1848682, 3697364, 4621705, 9243410, 18486820]

約数ペア:

[(1, 18486820), (2, 9243410), (4, 4621705), (5, 3697364), (10, 1848682), (11, 1680620), (17, 1087460), (20, 924341), (22, 840310), (34, 543730), (44, 420155), (55, 336124), (68, 271865), (85, 217492), (110, 168062), (170, 108746), (187, 98860), (220, 84031), (340, 54373), (374, 49430), (748, 24715), (935, 19772), (1870, 9886), (3740, 4943)]