28512440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 72681840

約数和(自身を除く): 44169400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 121, 137, 172, 215, 220, 242, 274, 344, 430, 440, 473, 484, 548, 605, 685, 860, 946, 968, 1096, 1210, 1370, 1507, 1720, 1892, 2365, 2420, 2740, 3014, 3784, 4730, 4840, 5203, 5480, 5891, 6028, 7535, 9460, 10406, 11782, 12056, 15070, 16577, 18920, 20812, 23564, 26015, 29455, 30140, 33154, 41624, 47128, 52030, 58910, 60280, 64801, 66308, 82885, 104060, 117820, 129602, 132616, 165770, 208120, 235640, 259204, 324005, 331540, 518408, 648010, 663080, 712811, 1296020, 1425622, 2592040, 2851244, 3564055, 5702488, 7128110, 14256220, 28512440]

約数ペア:

[(1, 28512440), (2, 14256220), (4, 7128110), (5, 5702488), (8, 3564055), (10, 2851244), (11, 2592040), (20, 1425622), (22, 1296020), (40, 712811), (43, 663080), (44, 648010), (55, 518408), (86, 331540), (88, 324005), (110, 259204), (121, 235640), (137, 208120), (172, 165770), (215, 132616), (220, 129602), (242, 117820), (274, 104060), (344, 82885), (430, 66308), (440, 64801), (473, 60280), (484, 58910), (548, 52030), (605, 47128), (685, 41624), (860, 33154), (946, 30140), (968, 29455), (1096, 26015), (1210, 23564), (1370, 20812), (1507, 18920), (1720, 16577), (1892, 15070), (2365, 12056), (2420, 11782), (2740, 10406), (3014, 9460), (3784, 7535), (4730, 6028), (4840, 5891), (5203, 5480)]