20571838555

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{49999}}^1$

素因数の和:50155

約数の個数: 32

約数和(自身を含む): 26784000000

約数和(自身を除く): 6212161445

約数列:

[1, 5, 19, 61, 71, 95, 305, 355, 1159, 1349, 4331, 5795, 6745, 21655, 49999, 82289, 249995, 411445, 949981, 3049939, 3549929, 4749905, 15249695, 17749645, 57948841, 67448651, 216545669, 289744205, 337243255, 1082728345, 4114367711, 20571838555]

約数ペア:

[(1, 20571838555), (5, 4114367711), (19, 1082728345), (61, 337243255), (71, 289744205), (95, 216545669), (305, 67448651), (355, 57948841), (1159, 17749645), (1349, 15249695), (4331, 4749905), (5795, 3549929), (6745, 3049939), (21655, 949981), (49999, 411445), (82289, 249995)]