68704340

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{5197}}^1$

素因数の和:5867

約数の個数: 24

約数和(自身を含む): 144525192

約数和(自身を除く): 75820852

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 5197, 6610, 10394, 13220, 20788, 25985, 51970, 103940, 3435217, 6870434, 13740868, 17176085, 34352170, 68704340]

約数ペア:

[(1, 68704340), (2, 34352170), (4, 17176085), (5, 13740868), (10, 6870434), (20, 3435217), (661, 103940), (1322, 51970), (2644, 25985), (3305, 20788), (5197, 13220), (6610, 10394)]