19858990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{823}}^1$

素因数の和:976

約数の個数: 32

約数和(自身を含む): 37969920

約数和(自身を除く): 18110930

約数列:

[1, 2, 5, 10, 19, 38, 95, 127, 190, 254, 635, 823, 1270, 1646, 2413, 4115, 4826, 8230, 12065, 15637, 24130, 31274, 78185, 104521, 156370, 209042, 522605, 1045210, 1985899, 3971798, 9929495, 19858990]

約数ペア:

[(1, 19858990), (2, 9929495), (5, 3971798), (10, 1985899), (19, 1045210), (38, 522605), (95, 209042), (127, 156370), (190, 104521), (254, 78185), (635, 31274), (823, 24130), (1270, 15637), (1646, 12065), (2413, 8230), (4115, 4826)]