253139920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{937}}^1$

素因数の和:1268

約数の個数: 80

約数和(自身を含む): 644833728

約数和(自身を除く): 391693808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 307, 440, 614, 880, 937, 1228, 1535, 1874, 2456, 3070, 3377, 3748, 4685, 4912, 6140, 6754, 7496, 9370, 10307, 12280, 13508, 14992, 16885, 18740, 20614, 24560, 27016, 33770, 37480, 41228, 51535, 54032, 67540, 74960, 82456, 103070, 135080, 164912, 206140, 270160, 287659, 412280, 575318, 824560, 1150636, 1438295, 2301272, 2876590, 3164249, 4602544, 5753180, 6328498, 11506360, 12656996, 15821245, 23012720, 25313992, 31642490, 50627984, 63284980, 126569960, 253139920]

約数ペア:

[(1, 253139920), (2, 126569960), (4, 63284980), (5, 50627984), (8, 31642490), (10, 25313992), (11, 23012720), (16, 15821245), (20, 12656996), (22, 11506360), (40, 6328498), (44, 5753180), (55, 4602544), (80, 3164249), (88, 2876590), (110, 2301272), (176, 1438295), (220, 1150636), (307, 824560), (440, 575318), (614, 412280), (880, 287659), (937, 270160), (1228, 206140), (1535, 164912), (1874, 135080), (2456, 103070), (3070, 82456), (3377, 74960), (3748, 67540), (4685, 54032), (4912, 51535), (6140, 41228), (6754, 37480), (7496, 33770), (9370, 27016), (10307, 24560), (12280, 20614), (13508, 18740), (14992, 16885)]