72648723

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{37}}^2$

素因数の和:129

約数の個数: 54

約数和(自身を含む): 122223276

約数和(自身を除く): 49574553

約数列:

[1, 3, 7, 19, 21, 37, 49, 57, 111, 133, 147, 259, 361, 399, 703, 777, 931, 1083, 1369, 1813, 2109, 2527, 2793, 4107, 4921, 5439, 7581, 9583, 13357, 14763, 17689, 26011, 28749, 34447, 40071, 53067, 67081, 78033, 93499, 103341, 182077, 201243, 280497, 494209, 546231, 654493, 1274539, 1482627, 1963479, 3459463, 3823617, 10378389, 24216241, 72648723]

約数ペア:

[(1, 72648723), (3, 24216241), (7, 10378389), (19, 3823617), (21, 3459463), (37, 1963479), (49, 1482627), (57, 1274539), (111, 654493), (133, 546231), (147, 494209), (259, 280497), (361, 201243), (399, 182077), (703, 103341), (777, 93499), (931, 78033), (1083, 67081), (1369, 53067), (1813, 40071), (2109, 34447), (2527, 28749), (2793, 26011), (4107, 17689), (4921, 14763), (5439, 13357), (7581, 9583)]