28278488

素因数分解:

$2^3\times 7^2\times {\mathrm{72139}}^1$

素因数の和:72159

約数の個数: 24

約数和(自身を含む): 61679700

約数和(自身を除く): 33401212

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 72139, 144278, 288556, 504973, 577112, 1009946, 2019892, 3534811, 4039784, 7069622, 14139244, 28278488]

約数ペア:

[(1, 28278488), (2, 14139244), (4, 7069622), (7, 4039784), (8, 3534811), (14, 2019892), (28, 1009946), (49, 577112), (56, 504973), (98, 288556), (196, 144278), (392, 72139)]