280199988

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{106621}}^1$

素因数の和:106704

約数の個数: 36

約数和(自身を含む): 717992548

約数和(自身を除く): 437792560

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 146, 219, 292, 438, 657, 876, 1314, 2628, 106621, 213242, 319863, 426484, 639726, 959589, 1279452, 1919178, 3838356, 7783333, 15566666, 23349999, 31133332, 46699998, 70049997, 93399996, 140099994, 280199988]

約数ペア:

[(1, 280199988), (2, 140099994), (3, 93399996), (4, 70049997), (6, 46699998), (9, 31133332), (12, 23349999), (18, 15566666), (36, 7783333), (73, 3838356), (146, 1919178), (219, 1279452), (292, 959589), (438, 639726), (657, 426484), (876, 319863), (1314, 213242), (2628, 106621)]