31150280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:739

約数の個数: 96

約数和(自身を含む): 85199040

約数和(自身を除く): 54048760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 460, 490, 644, 691, 805, 920, 980, 1127, 1288, 1382, 1610, 1960, 2254, 2764, 3220, 3455, 4508, 4837, 5528, 5635, 6440, 6910, 9016, 9674, 11270, 13820, 15893, 19348, 22540, 24185, 27640, 31786, 33859, 38696, 45080, 48370, 63572, 67718, 79465, 96740, 111251, 127144, 135436, 158930, 169295, 193480, 222502, 270872, 317860, 338590, 445004, 556255, 635720, 677180, 778757, 890008, 1112510, 1354360, 1557514, 2225020, 3115028, 3893785, 4450040, 6230056, 7787570, 15575140, 31150280]

約数ペア:

[(1, 31150280), (2, 15575140), (4, 7787570), (5, 6230056), (7, 4450040), (8, 3893785), (10, 3115028), (14, 2225020), (20, 1557514), (23, 1354360), (28, 1112510), (35, 890008), (40, 778757), (46, 677180), (49, 635720), (56, 556255), (70, 445004), (92, 338590), (98, 317860), (115, 270872), (140, 222502), (161, 193480), (184, 169295), (196, 158930), (230, 135436), (245, 127144), (280, 111251), (322, 96740), (392, 79465), (460, 67718), (490, 63572), (644, 48370), (691, 45080), (805, 38696), (920, 33859), (980, 31786), (1127, 27640), (1288, 24185), (1382, 22540), (1610, 19348), (1960, 15893), (2254, 13820), (2764, 11270), (3220, 9674), (3455, 9016), (4508, 6910), (4837, 6440), (5528, 5635)]