389966290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 820804608

約数和(自身を除く): 430838318

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 271, 305, 337, 427, 542, 610, 674, 854, 1355, 1685, 1897, 2135, 2359, 2710, 3370, 3794, 4270, 4718, 9485, 11795, 16531, 18970, 20557, 23590, 33062, 41114, 82655, 91327, 102785, 115717, 143899, 165310, 182654, 205570, 231434, 287798, 456635, 578585, 639289, 719495, 913270, 1157170, 1278578, 1438990, 3196445, 5570947, 6392890, 11141894, 27854735, 38996629, 55709470, 77993258, 194983145, 389966290]

約数ペア:

[(1, 389966290), (2, 194983145), (5, 77993258), (7, 55709470), (10, 38996629), (14, 27854735), (35, 11141894), (61, 6392890), (70, 5570947), (122, 3196445), (271, 1438990), (305, 1278578), (337, 1157170), (427, 913270), (542, 719495), (610, 639289), (674, 578585), (854, 456635), (1355, 287798), (1685, 231434), (1897, 205570), (2135, 182654), (2359, 165310), (2710, 143899), (3370, 115717), (3794, 102785), (4270, 91327), (4718, 82655), (9485, 41114), (11795, 33062), (16531, 23590), (18970, 20557)]