71644160

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2031

約数の個数: 88

約数和(自身を含む): 196512000

約数和(自身を除く): 124867840

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, 512, 560, 640, 896, 1024, 1120, 1280, 1792, 1999, 2240, 2560, 3584, 3998, 4480, 5120, 7168, 7996, 8960, 9995, 13993, 15992, 17920, 19990, 27986, 31984, 35840, 39980, 55972, 63968, 69965, 79960, 111944, 127936, 139930, 159920, 223888, 255872, 279860, 319840, 447776, 511744, 559720, 639680, 895552, 1023488, 1119440, 1279360, 1791104, 2046976, 2238880, 2558720, 3582208, 4477760, 5117440, 7164416, 8955520, 10234880, 14328832, 17911040, 35822080, 71644160]

約数ペア:

[(1, 71644160), (2, 35822080), (4, 17911040), (5, 14328832), (7, 10234880), (8, 8955520), (10, 7164416), (14, 5117440), (16, 4477760), (20, 3582208), (28, 2558720), (32, 2238880), (35, 2046976), (40, 1791104), (56, 1279360), (64, 1119440), (70, 1023488), (80, 895552), (112, 639680), (128, 559720), (140, 511744), (160, 447776), (224, 319840), (256, 279860), (280, 255872), (320, 223888), (448, 159920), (512, 139930), (560, 127936), (640, 111944), (896, 79960), (1024, 69965), (1120, 63968), (1280, 55972), (1792, 39980), (1999, 35840), (2240, 31984), (2560, 27986), (3584, 19990), (3998, 17920), (4480, 15992), (5120, 13993), (7168, 9995), (7996, 8960)]