20506872

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 54236160

約数和(自身を除く): 33729288

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 43, 62, 86, 93, 124, 129, 172, 186, 248, 258, 344, 372, 516, 641, 744, 1032, 1282, 1333, 1923, 2564, 2666, 3846, 3999, 5128, 5332, 7692, 7998, 10664, 15384, 15996, 19871, 27563, 31992, 39742, 55126, 59613, 79484, 82689, 110252, 119226, 158968, 165378, 220504, 238452, 330756, 476904, 661512, 854453, 1708906, 2563359, 3417812, 5126718, 6835624, 10253436, 20506872]

約数ペア:

[(1, 20506872), (2, 10253436), (3, 6835624), (4, 5126718), (6, 3417812), (8, 2563359), (12, 1708906), (24, 854453), (31, 661512), (43, 476904), (62, 330756), (86, 238452), (93, 220504), (124, 165378), (129, 158968), (172, 119226), (186, 110252), (248, 82689), (258, 79484), (344, 59613), (372, 55126), (516, 39742), (641, 31992), (744, 27563), (1032, 19871), (1282, 15996), (1333, 15384), (1923, 10664), (2564, 7998), (2666, 7692), (3846, 5332), (3999, 5128)]