17911040

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2027

約数の個数: 72

約数和(自身を含む): 49056000

約数和(自身を除く): 31144960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 1999, 2240, 3998, 4480, 7996, 8960, 9995, 13993, 15992, 19990, 27986, 31984, 39980, 55972, 63968, 69965, 79960, 111944, 127936, 139930, 159920, 223888, 255872, 279860, 319840, 447776, 511744, 559720, 639680, 895552, 1119440, 1279360, 1791104, 2238880, 2558720, 3582208, 4477760, 8955520, 17911040]

約数ペア:

[(1, 17911040), (2, 8955520), (4, 4477760), (5, 3582208), (7, 2558720), (8, 2238880), (10, 1791104), (14, 1279360), (16, 1119440), (20, 895552), (28, 639680), (32, 559720), (35, 511744), (40, 447776), (56, 319840), (64, 279860), (70, 255872), (80, 223888), (112, 159920), (128, 139930), (140, 127936), (160, 111944), (224, 79960), (256, 69965), (280, 63968), (320, 55972), (448, 39980), (560, 31984), (640, 27986), (896, 19990), (1120, 15992), (1280, 13993), (1792, 9995), (1999, 8960), (2240, 7996), (3998, 4480)]