639968792

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{4210321}}^1$

素因数の和:4210346

約数の個数: 16

約数和(自身を含む): 1263096600

約数和(自身を除く): 623127808

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 4210321, 8420642, 16841284, 33682568, 79996099, 159992198, 319984396, 639968792]

約数ペア:

[(1, 639968792), (2, 319984396), (4, 159992198), (8, 79996099), (19, 33682568), (38, 16841284), (76, 8420642), (152, 4210321)]