1383728

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:644

約数の個数: 20

約数和(自身を含む): 2700720

約数和(自身を除く): 1316992

約数列:

[1, 2, 4, 8, 16, 197, 394, 439, 788, 878, 1576, 1756, 3152, 3512, 7024, 86483, 172966, 345932, 691864, 1383728]

約数ペア:

[(1, 1383728), (2, 691864), (4, 345932), (8, 172966), (16, 86483), (197, 7024), (394, 3512), (439, 3152), (788, 1756), (878, 1576)]