640234557

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{2741}}^1$

素因数の和:3002

約数の個数: 32

約数和(自身を含む): 976590720

約数和(自身を除く): 336356163

約数列:

[1, 3, 9, 27, 41, 123, 211, 369, 633, 1107, 1899, 2741, 5697, 8223, 8651, 24669, 25953, 74007, 77859, 112381, 233577, 337143, 578351, 1011429, 1735053, 3034287, 5205159, 15615477, 23712391, 71137173, 213411519, 640234557]

約数ペア:

[(1, 640234557), (3, 213411519), (9, 71137173), (27, 23712391), (41, 15615477), (123, 5205159), (211, 3034287), (369, 1735053), (633, 1011429), (1107, 578351), (1899, 337143), (2741, 233577), (5697, 112381), (8223, 77859), (8651, 74007), (24669, 25953)]