78965840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 80

約数和(自身を含む): 192376080

約数和(自身を除く): 113410240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 101, 116, 145, 202, 232, 290, 337, 404, 464, 505, 580, 674, 808, 1010, 1160, 1348, 1616, 1685, 2020, 2320, 2696, 2929, 3370, 4040, 5392, 5858, 6740, 8080, 9773, 11716, 13480, 14645, 19546, 23432, 26960, 29290, 34037, 39092, 46864, 48865, 58580, 68074, 78184, 97730, 117160, 136148, 156368, 170185, 195460, 234320, 272296, 340370, 390920, 544592, 680740, 781840, 987073, 1361480, 1974146, 2722960, 3948292, 4935365, 7896584, 9870730, 15793168, 19741460, 39482920, 78965840]

約数ペア:

[(1, 78965840), (2, 39482920), (4, 19741460), (5, 15793168), (8, 9870730), (10, 7896584), (16, 4935365), (20, 3948292), (29, 2722960), (40, 1974146), (58, 1361480), (80, 987073), (101, 781840), (116, 680740), (145, 544592), (202, 390920), (232, 340370), (290, 272296), (337, 234320), (404, 195460), (464, 170185), (505, 156368), (580, 136148), (674, 117160), (808, 97730), (1010, 78184), (1160, 68074), (1348, 58580), (1616, 48865), (1685, 46864), (2020, 39092), (2320, 34037), (2696, 29290), (2929, 26960), (3370, 23432), (4040, 19546), (5392, 14645), (5858, 13480), (6740, 11716), (8080, 9773)]