639489276

素因数分解:

$2^2\times 3^3\times {\mathrm{509}}^1\times {\mathrm{11633}}^1$

素因数の和:12155

約数の個数: 48

約数和(自身を含む): 1661335200

約数和(自身を除く): 1021845924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 509, 1018, 1527, 2036, 3054, 4581, 6108, 9162, 11633, 13743, 18324, 23266, 27486, 34899, 46532, 54972, 69798, 104697, 139596, 209394, 314091, 418788, 628182, 1256364, 5921197, 11842394, 17763591, 23684788, 35527182, 53290773, 71054364, 106581546, 159872319, 213163092, 319744638, 639489276]

約数ペア:

[(1, 639489276), (2, 319744638), (3, 213163092), (4, 159872319), (6, 106581546), (9, 71054364), (12, 53290773), (18, 35527182), (27, 23684788), (36, 17763591), (54, 11842394), (108, 5921197), (509, 1256364), (1018, 628182), (1527, 418788), (2036, 314091), (3054, 209394), (4581, 139596), (6108, 104697), (9162, 69798), (11633, 54972), (13743, 46532), (18324, 34899), (23266, 27486)]