261403128

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{518657}}^1$

素因数の和:518676

約数の個数: 48

約数和(自身を含む): 809106480

約数和(自身を除く): 547703352

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 518657, 1037314, 1555971, 2074628, 3111942, 3630599, 4149256, 4667913, 6223884, 7261198, 9335826, 10891797, 12447768, 14522396, 18671652, 21783594, 29044792, 32675391, 37343304, 43567188, 65350782, 87134376, 130701564, 261403128]

約数ペア:

[(1, 261403128), (2, 130701564), (3, 87134376), (4, 65350782), (6, 43567188), (7, 37343304), (8, 32675391), (9, 29044792), (12, 21783594), (14, 18671652), (18, 14522396), (21, 12447768), (24, 10891797), (28, 9335826), (36, 7261198), (42, 6223884), (56, 4667913), (63, 4149256), (72, 3630599), (84, 3111942), (126, 2074628), (168, 1555971), (252, 1037314), (504, 518657)]