19319720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9857}}^1$

素因数の和:9882

約数の個数: 48

約数和(自身を含む): 50571540

約数和(自身を除く): 31251820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9857, 19714, 39428, 49285, 68999, 78856, 98570, 137998, 197140, 275996, 344995, 394280, 482993, 551992, 689990, 965986, 1379980, 1931972, 2414965, 2759960, 3863944, 4829930, 9659860, 19319720]

約数ペア:

[(1, 19319720), (2, 9659860), (4, 4829930), (5, 3863944), (7, 2759960), (8, 2414965), (10, 1931972), (14, 1379980), (20, 965986), (28, 689990), (35, 551992), (40, 482993), (49, 394280), (56, 344995), (70, 275996), (98, 197140), (140, 137998), (196, 98570), (245, 78856), (280, 68999), (392, 49285), (490, 39428), (980, 19714), (1960, 9857)]