639367024

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{2103181}}^1$

素因数の和:2103208

約数の個数: 20

約数和(自身を含む): 1303972840

約数和(自身を除く): 664605816

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 2103181, 4206362, 8412724, 16825448, 33650896, 39960439, 79920878, 159841756, 319683512, 639367024]

約数ペア:

[(1, 639367024), (2, 319683512), (4, 159841756), (8, 79920878), (16, 39960439), (19, 33650896), (38, 16825448), (76, 8412724), (152, 4206362), (304, 2103181)]