31320016

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:481

約数の個数: 80

約数和(自身を含む): 76384000

約数和(自身を除く): 45063984

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 343, 364, 392, 439, 637, 686, 728, 784, 878, 1274, 1372, 1456, 1756, 2548, 2744, 3073, 3512, 4459, 5096, 5488, 5707, 6146, 7024, 8918, 10192, 11414, 12292, 17836, 21511, 22828, 24584, 35672, 39949, 43022, 45656, 49168, 71344, 79898, 86044, 91312, 150577, 159796, 172088, 279643, 301154, 319592, 344176, 559286, 602308, 639184, 1118572, 1204616, 1957501, 2237144, 2409232, 3915002, 4474288, 7830004, 15660008, 31320016]

約数ペア:

[(1, 31320016), (2, 15660008), (4, 7830004), (7, 4474288), (8, 3915002), (13, 2409232), (14, 2237144), (16, 1957501), (26, 1204616), (28, 1118572), (49, 639184), (52, 602308), (56, 559286), (91, 344176), (98, 319592), (104, 301154), (112, 279643), (182, 172088), (196, 159796), (208, 150577), (343, 91312), (364, 86044), (392, 79898), (439, 71344), (637, 49168), (686, 45656), (728, 43022), (784, 39949), (878, 35672), (1274, 24584), (1372, 22828), (1456, 21511), (1756, 17836), (2548, 12292), (2744, 11414), (3073, 10192), (3512, 8918), (4459, 7024), (5096, 6146), (5488, 5707)]