19690340

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2789}}^1$

素因数の和:3151

約数の個数: 24

約数和(自身を含む): 41481720

約数和(自身を除く): 21791380

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2789, 3530, 5578, 7060, 11156, 13945, 27890, 55780, 984517, 1969034, 3938068, 4922585, 9845170, 19690340]

約数ペア:

[(1, 19690340), (2, 9845170), (4, 4922585), (5, 3938068), (10, 1969034), (20, 984517), (353, 55780), (706, 27890), (1412, 13945), (1765, 11156), (2789, 7060), (3530, 5578)]