20280964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{5179}}^1$

素因数の和:5283

約数の個数: 24

約数和(自身を含む): 39160800

約数和(自身を除く): 18879836

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 5179, 10358, 20716, 56969, 113938, 227876, 460931, 921862, 1843724, 5070241, 10140482, 20280964]

約数ペア:

[(1, 20280964), (2, 10140482), (4, 5070241), (11, 1843724), (22, 921862), (44, 460931), (89, 227876), (178, 113938), (356, 56969), (979, 20716), (1958, 10358), (3916, 5179)]