139398340

素因数分解:

$2^2\times 5^1\times {\mathrm{6969917}}^1$

素因数の和:6969926

約数の個数: 12

約数和(自身を含む): 292736556

約数和(自身を除く): 153338216

約数列:

[1, 2, 4, 5, 10, 20, 6969917, 13939834, 27879668, 34849585, 69699170, 139398340]

約数ペア:

[(1, 139398340), (2, 69699170), (4, 34849585), (5, 27879668), (10, 13939834), (20, 6969917)]