261660616

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{64007}}^1$

素因数の和:64093

約数の個数: 32

約数和(自身を含む): 568391040

約数和(自身を除く): 306730424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 64007, 128014, 256028, 448049, 512056, 896098, 1792196, 3584392, 4672511, 9345022, 18690044, 32707577, 37380088, 65415154, 130830308, 261660616]

約数ペア:

[(1, 261660616), (2, 130830308), (4, 65415154), (7, 37380088), (8, 32707577), (14, 18690044), (28, 9345022), (56, 4672511), (73, 3584392), (146, 1792196), (292, 896098), (511, 512056), (584, 448049), (1022, 256028), (2044, 128014), (4088, 64007)]