138998446

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 221760000

約数和(自身を除く): 82761554

約数列:

[1, 2, 41, 43, 79, 82, 86, 158, 499, 998, 1763, 3239, 3397, 3526, 6478, 6794, 20459, 21457, 39421, 40918, 42914, 78842, 139277, 278554, 879737, 1616261, 1695103, 1759474, 3232522, 3390206, 69499223, 138998446]

約数ペア:

[(1, 138998446), (2, 69499223), (41, 3390206), (43, 3232522), (79, 1759474), (82, 1695103), (86, 1616261), (158, 879737), (499, 278554), (998, 139277), (1763, 78842), (3239, 42914), (3397, 40918), (3526, 39421), (6478, 21457), (6794, 20459)]