28110280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2203}}^1$

素因数の和:2254

約数の個数: 64

約数和(自身を含む): 71409600

約数和(自身を除く): 43299320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 2203, 2552, 3190, 4406, 6380, 8812, 11015, 12760, 17624, 22030, 24233, 44060, 48466, 63887, 88120, 96932, 121165, 127774, 193864, 242330, 255548, 319435, 484660, 511096, 638870, 702757, 969320, 1277740, 1405514, 2555480, 2811028, 3513785, 5622056, 7027570, 14055140, 28110280]

約数ペア:

[(1, 28110280), (2, 14055140), (4, 7027570), (5, 5622056), (8, 3513785), (10, 2811028), (11, 2555480), (20, 1405514), (22, 1277740), (29, 969320), (40, 702757), (44, 638870), (55, 511096), (58, 484660), (88, 319435), (110, 255548), (116, 242330), (145, 193864), (220, 127774), (232, 121165), (290, 96932), (319, 88120), (440, 63887), (580, 48466), (638, 44060), (1160, 24233), (1276, 22030), (1595, 17624), (2203, 12760), (2552, 11015), (3190, 8812), (4406, 6380)]