78508340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36013}}^1$

素因数の和:36131

約数の個数: 24

約数和(自身を含む): 166384680

約数和(自身を除く): 87876340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 36013, 72026, 144052, 180065, 360130, 720260, 3925417, 7850834, 15701668, 19627085, 39254170, 78508340]

約数ペア:

[(1, 78508340), (2, 39254170), (4, 19627085), (5, 15701668), (10, 7850834), (20, 3925417), (109, 720260), (218, 360130), (436, 180065), (545, 144052), (1090, 72026), (2180, 36013)]