261390884

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{5419}}^1$

素因数の和:5843

約数の個数: 24

約数和(自身を含む): 473491200

約数和(自身を除く): 212100316

約数列:

[1, 2, 4, 31, 62, 124, 389, 778, 1556, 5419, 10838, 12059, 21676, 24118, 48236, 167989, 335978, 671956, 2107991, 4215982, 8431964, 65347721, 130695442, 261390884]

約数ペア:

[(1, 261390884), (2, 130695442), (4, 65347721), (31, 8431964), (62, 4215982), (124, 2107991), (389, 671956), (778, 335978), (1556, 167989), (5419, 48236), (10838, 24118), (12059, 21676)]