68304280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 178459200

約数和(自身を除く): 110154920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 53, 55, 58, 88, 101, 106, 110, 116, 145, 202, 212, 220, 232, 265, 290, 319, 404, 424, 440, 505, 530, 580, 583, 638, 808, 1010, 1060, 1111, 1160, 1166, 1276, 1537, 1595, 2020, 2120, 2222, 2332, 2552, 2915, 2929, 3074, 3190, 4040, 4444, 4664, 5353, 5555, 5830, 5858, 6148, 6380, 7685, 8888, 10706, 11110, 11660, 11716, 12296, 12760, 14645, 15370, 16907, 21412, 22220, 23320, 23432, 26765, 29290, 30740, 32219, 33814, 42824, 44440, 53530, 58580, 58883, 61480, 64438, 67628, 84535, 107060, 117160, 117766, 128876, 135256, 155237, 161095, 169070, 214120, 235532, 257752, 294415, 310474, 322190, 338140, 471064, 588830, 620948, 644380, 676280, 776185, 1177660, 1241896, 1288760, 1552370, 1707607, 2355320, 3104740, 3415214, 6209480, 6830428, 8538035, 13660856, 17076070, 34152140, 68304280]

約数ペア:

[(1, 68304280), (2, 34152140), (4, 17076070), (5, 13660856), (8, 8538035), (10, 6830428), (11, 6209480), (20, 3415214), (22, 3104740), (29, 2355320), (40, 1707607), (44, 1552370), (53, 1288760), (55, 1241896), (58, 1177660), (88, 776185), (101, 676280), (106, 644380), (110, 620948), (116, 588830), (145, 471064), (202, 338140), (212, 322190), (220, 310474), (232, 294415), (265, 257752), (290, 235532), (319, 214120), (404, 169070), (424, 161095), (440, 155237), (505, 135256), (530, 128876), (580, 117766), (583, 117160), (638, 107060), (808, 84535), (1010, 67628), (1060, 64438), (1111, 61480), (1160, 58883), (1166, 58580), (1276, 53530), (1537, 44440), (1595, 42824), (2020, 33814), (2120, 32219), (2222, 30740), (2332, 29290), (2552, 26765), (2915, 23432), (2929, 23320), (3074, 22220), (3190, 21412), (4040, 16907), (4444, 15370), (4664, 14645), (5353, 12760), (5555, 12296), (5830, 11716), (5858, 11660), (6148, 11110), (6380, 10706), (7685, 8888)]