638049260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1679077}}^1$

素因数の和:1679105

約数の個数: 24

約数和(自身を含む): 1410425520

約数和(自身を除く): 772376260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1679077, 3358154, 6716308, 8395385, 16790770, 31902463, 33581540, 63804926, 127609852, 159512315, 319024630, 638049260]

約数ペア:

[(1, 638049260), (2, 319024630), (4, 159512315), (5, 127609852), (10, 63804926), (19, 33581540), (20, 31902463), (38, 16790770), (76, 8395385), (95, 6716308), (190, 3358154), (380, 1679077)]