1990457974

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{647}}^1\times {\mathrm{4261}}^1$

素因数の和:4948

約数の個数: 24

約数和(自身を含む): 3156709968

約数和(自身を除く): 1166251994

約数列:

[1, 2, 19, 38, 361, 647, 722, 1294, 4261, 8522, 12293, 24586, 80959, 161918, 233567, 467134, 1538221, 2756867, 3076442, 5513734, 52380473, 104760946, 995228987, 1990457974]

約数ペア:

[(1, 1990457974), (2, 995228987), (19, 104760946), (38, 52380473), (361, 5513734), (647, 3076442), (722, 2756867), (1294, 1538221), (4261, 467134), (8522, 233567), (12293, 161918), (24586, 80959)]