28286500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 69713280

約数和(自身を除く): 41426780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 110, 125, 139, 148, 185, 220, 250, 275, 278, 370, 407, 500, 550, 556, 695, 740, 814, 925, 1100, 1375, 1390, 1529, 1628, 1850, 2035, 2750, 2780, 3058, 3475, 3700, 4070, 4625, 5143, 5500, 6116, 6950, 7645, 8140, 9250, 10175, 10286, 13900, 15290, 17375, 18500, 20350, 20572, 25715, 30580, 34750, 38225, 40700, 50875, 51430, 56573, 69500, 76450, 101750, 102860, 113146, 128575, 152900, 191125, 203500, 226292, 257150, 282865, 382250, 514300, 565730, 642875, 764500, 1131460, 1285750, 1414325, 2571500, 2828650, 5657300, 7071625, 14143250, 28286500]

約数ペア:

[(1, 28286500), (2, 14143250), (4, 7071625), (5, 5657300), (10, 2828650), (11, 2571500), (20, 1414325), (22, 1285750), (25, 1131460), (37, 764500), (44, 642875), (50, 565730), (55, 514300), (74, 382250), (100, 282865), (110, 257150), (125, 226292), (139, 203500), (148, 191125), (185, 152900), (220, 128575), (250, 113146), (275, 102860), (278, 101750), (370, 76450), (407, 69500), (500, 56573), (550, 51430), (556, 50875), (695, 40700), (740, 38225), (814, 34750), (925, 30580), (1100, 25715), (1375, 20572), (1390, 20350), (1529, 18500), (1628, 17375), (1850, 15290), (2035, 13900), (2750, 10286), (2780, 10175), (3058, 9250), (3475, 8140), (3700, 7645), (4070, 6950), (4625, 6116), (5143, 5500)]