639842556

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{68447}}^1$

素因数の和:68514

約数の個数: 48

約数和(自身を含む): 1609896960

約数和(自身を除く): 970054404

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 41, 57, 76, 82, 114, 123, 164, 228, 246, 492, 779, 1558, 2337, 3116, 4674, 9348, 68447, 136894, 205341, 273788, 410682, 821364, 1300493, 2600986, 2806327, 3901479, 5201972, 5612654, 7802958, 8418981, 11225308, 15605916, 16837962, 33675924, 53320213, 106640426, 159960639, 213280852, 319921278, 639842556]

約数ペア:

[(1, 639842556), (2, 319921278), (3, 213280852), (4, 159960639), (6, 106640426), (12, 53320213), (19, 33675924), (38, 16837962), (41, 15605916), (57, 11225308), (76, 8418981), (82, 7802958), (114, 5612654), (123, 5201972), (164, 3901479), (228, 2806327), (246, 2600986), (492, 1300493), (779, 821364), (1558, 410682), (2337, 273788), (3116, 205341), (4674, 136894), (9348, 68447)]