25759720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 66718080

約数和(自身を除く): 40958360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 467, 788, 934, 985, 1379, 1576, 1868, 1970, 2335, 2758, 3269, 3736, 3940, 4670, 5516, 6538, 6895, 7880, 9340, 11032, 13076, 13790, 16345, 18680, 26152, 27580, 32690, 55160, 65380, 91999, 130760, 183998, 367996, 459995, 643993, 735992, 919990, 1287986, 1839980, 2575972, 3219965, 3679960, 5151944, 6439930, 12879860, 25759720]

約数ペア:

[(1, 25759720), (2, 12879860), (4, 6439930), (5, 5151944), (7, 3679960), (8, 3219965), (10, 2575972), (14, 1839980), (20, 1287986), (28, 919990), (35, 735992), (40, 643993), (56, 459995), (70, 367996), (140, 183998), (197, 130760), (280, 91999), (394, 65380), (467, 55160), (788, 32690), (934, 27580), (985, 26152), (1379, 18680), (1576, 16345), (1868, 13790), (1970, 13076), (2335, 11032), (2758, 9340), (3269, 7880), (3736, 6895), (3940, 6538), (4670, 5516)]