77278880

素因数分解:

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

素因数の和:9886

約数の個数: 72

約数和(自身を含む): 212400468

約数和(自身を除く): 135121588

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 9857, 19714, 39428, 49285, 68999, 78856, 98570, 137998, 157712, 197140, 275996, 315424, 344995, 394280, 482993, 551992, 689990, 788560, 965986, 1103984, 1379980, 1577120, 1931972, 2207968, 2414965, 2759960, 3863944, 4829930, 5519920, 7727888, 9659860, 11039840, 15455776, 19319720, 38639440, 77278880]

約数ペア:

[(1, 77278880), (2, 38639440), (4, 19319720), (5, 15455776), (7, 11039840), (8, 9659860), (10, 7727888), (14, 5519920), (16, 4829930), (20, 3863944), (28, 2759960), (32, 2414965), (35, 2207968), (40, 1931972), (49, 1577120), (56, 1379980), (70, 1103984), (80, 965986), (98, 788560), (112, 689990), (140, 551992), (160, 482993), (196, 394280), (224, 344995), (245, 315424), (280, 275996), (392, 197140), (490, 157712), (560, 137998), (784, 98570), (980, 78856), (1120, 68999), (1568, 49285), (1960, 39428), (3920, 19714), (7840, 9857)]