257195718

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{13913}}^1$

素因数の和:14013

約数の個数: 48

約数和(自身を含む): 607763520

約数和(自身を除く): 350567802

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 79, 117, 158, 234, 237, 474, 711, 1027, 1422, 2054, 3081, 6162, 9243, 13913, 18486, 27826, 41739, 83478, 125217, 180869, 250434, 361738, 542607, 1085214, 1099127, 1627821, 2198254, 3255642, 3297381, 6594762, 9892143, 14288651, 19784286, 28577302, 42865953, 85731906, 128597859, 257195718]

約数ペア:

[(1, 257195718), (2, 128597859), (3, 85731906), (6, 42865953), (9, 28577302), (13, 19784286), (18, 14288651), (26, 9892143), (39, 6594762), (78, 3297381), (79, 3255642), (117, 2198254), (158, 1627821), (234, 1099127), (237, 1085214), (474, 542607), (711, 361738), (1027, 250434), (1422, 180869), (2054, 125217), (3081, 83478), (6162, 41739), (9243, 27826), (13913, 18486)]