25479440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 68352768

約数和(自身を除く): 42873328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 173, 263, 280, 346, 526, 560, 692, 865, 1052, 1211, 1315, 1384, 1730, 1841, 2104, 2422, 2630, 2768, 3460, 3682, 4208, 4844, 5260, 6055, 6920, 7364, 9205, 9688, 10520, 12110, 13840, 14728, 18410, 19376, 21040, 24220, 29456, 36820, 45499, 48440, 73640, 90998, 96880, 147280, 181996, 227495, 318493, 363992, 454990, 636986, 727984, 909980, 1273972, 1592465, 1819960, 2547944, 3184930, 3639920, 5095888, 6369860, 12739720, 25479440]

約数ペア:

[(1, 25479440), (2, 12739720), (4, 6369860), (5, 5095888), (7, 3639920), (8, 3184930), (10, 2547944), (14, 1819960), (16, 1592465), (20, 1273972), (28, 909980), (35, 727984), (40, 636986), (56, 454990), (70, 363992), (80, 318493), (112, 227495), (140, 181996), (173, 147280), (263, 96880), (280, 90998), (346, 73640), (526, 48440), (560, 45499), (692, 36820), (865, 29456), (1052, 24220), (1211, 21040), (1315, 19376), (1384, 18410), (1730, 14728), (1841, 13840), (2104, 12110), (2422, 10520), (2630, 9688), (2768, 9205), (3460, 7364), (3682, 6920), (4208, 6055), (4844, 5260)]