20180660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2309}}^1$

素因数の和:2360

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 26388940

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 2309, 4370, 4618, 8740, 9236, 11545, 23090, 43871, 46180, 53107, 87742, 106214, 175484, 212428, 219355, 265535, 438710, 531070, 877420, 1009033, 1062140, 2018066, 4036132, 5045165, 10090330, 20180660]

約数ペア:

[(1, 20180660), (2, 10090330), (4, 5045165), (5, 4036132), (10, 2018066), (19, 1062140), (20, 1009033), (23, 877420), (38, 531070), (46, 438710), (76, 265535), (92, 219355), (95, 212428), (115, 175484), (190, 106214), (230, 87742), (380, 53107), (437, 46180), (460, 43871), (874, 23090), (1748, 11545), (2185, 9236), (2309, 8740), (4370, 4618)]