19316780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{857}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 49297248

約数和(自身を除く): 29980468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 857, 980, 1127, 1610, 1714, 2254, 3220, 3428, 4285, 4508, 5635, 5999, 8570, 11270, 11998, 17140, 19711, 22540, 23996, 29995, 39422, 41993, 59990, 78844, 83986, 98555, 119980, 137977, 167972, 197110, 209965, 275954, 394220, 419930, 551908, 689885, 839860, 965839, 1379770, 1931678, 2759540, 3863356, 4829195, 9658390, 19316780]

約数ペア:

[(1, 19316780), (2, 9658390), (4, 4829195), (5, 3863356), (7, 2759540), (10, 1931678), (14, 1379770), (20, 965839), (23, 839860), (28, 689885), (35, 551908), (46, 419930), (49, 394220), (70, 275954), (92, 209965), (98, 197110), (115, 167972), (140, 137977), (161, 119980), (196, 98555), (230, 83986), (245, 78844), (322, 59990), (460, 41993), (490, 39422), (644, 29995), (805, 23996), (857, 22540), (980, 19711), (1127, 17140), (1610, 11998), (1714, 11270), (2254, 8570), (3220, 5999), (3428, 5635), (4285, 4508)]