52780940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{337}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 114476544

約数和(自身を除く): 61695604

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 205, 337, 382, 410, 674, 764, 820, 955, 1348, 1685, 1910, 3370, 3820, 6740, 7831, 13817, 15662, 27634, 31324, 39155, 55268, 64367, 69085, 78310, 128734, 138170, 156620, 257468, 276340, 321835, 643670, 1287340, 2639047, 5278094, 10556188, 13195235, 26390470, 52780940]

約数ペア:

[(1, 52780940), (2, 26390470), (4, 13195235), (5, 10556188), (10, 5278094), (20, 2639047), (41, 1287340), (82, 643670), (164, 321835), (191, 276340), (205, 257468), (337, 156620), (382, 138170), (410, 128734), (674, 78310), (764, 69085), (820, 64367), (955, 55268), (1348, 39155), (1685, 31324), (1910, 27634), (3370, 15662), (3820, 13817), (6740, 7831)]